(英语)被动语态练习全集

（英语）被动语态练习全集

一、单项选择被动语态
1
．
It was the natural disaster, rather than human errors, that ________ for the death of so many
innocent people.

A
．
are blamed
【答案】
B

【解析】

【详解】

考查主谓一致以及
be to blame
的用法。句意：是自然灾害，而不是人为错 误，应对这么多
无辜人类的死亡负责。
be to blame for…
表示
“
应受责备，应对
……
负责
”
时，固定短语，因此
排除< br>A
、
C
项；这里强调主语
the natural disaster
，是一个强调句，谓语动词应与主语保持
一致，即与
the natural disaster
保持一致，因此用
was to blame
，故选
B
项。

B
．
was to blame C
．
was blamed D
．
were to blame


2
．
________scores of times, but Derek still couldn’t understand how to use past participle in a
concrete situation.

A
．
Having explained
C
．
Though it was explained
【答案】
D

【解析】

因为有连词
but
，前面应是完整的句子，排除
A,B; Though
不能和
but
同时使用，所以选
D
。

B
．
Having been explained

D
．
It was explained


3
．
I saw Jack in the lift this morning. He

around here for a long time.

A
．
won't be seen B
．
wasn't seen

C
．
hasn't been seen D
．
hadn't been seen

【答案】
D

【解析】

【详解】

考查过去完成时态的被动语态。句意：今天早 上我在电梯里看见杰克。他好久没在这附近
露面了。根据
this morning
可知这是过去的事情；再根据
for a long time
可知此 空是更靠前
的动作，且句子主语
He
和
see
之间是一种被动关系， 所以用过去完成时态，故选
D
。


4
．
Many subway stations, including the one near our school, ________ at present for a better
transport in the city.

A
．
are constructing B
．
are being constructed C
．
is constructing D
．
is being constructed

【答案】
B

【解析】

【详解】

考查动词时态语态。句意：许多地铁站，包括我们学校附近的地铁站，目前 正在建设中，

以便有更便利的交通。此处表示动作正在进行，句中主语
Many subway stations
和动词
construct
是被动关系，所以此处用 现在进行时的被动，与主语一致，故选
B.

【点睛】

现在进行时的被动结构：
be + being+
过去分词

A number of Dongfeng trucks are being shipped abroad.
一批东风卡车正被运往国外。

1
）
“be being done”
中的动词
be
应随主语作相应的变化。

2
）将现在进行时的主动语态变为现在进行时的被动语态的关键是：把
be doing
变为
be
being done.

例
1. The students are cleaning the classroom now. →The classroom is being cleaned now.

现在学生们正在打扫教室。
(are cleaning
变为
is being cleaned)

例
2. The boy is counting some sheep. →Some sheep are being counted.

那男孩正在数羊。
(is counting
变为
are being counted)


5
．
The house, which _____ last night, ____ my aunt but she doesn’t live there any more.

A
．
was broken into; is belonged to B
．
broke into; is belonged to

C
．
broke into; belonging to D
．
was broken into; belongs to

【答案】
D

【解析】

【详解】

考查被动语态和主动语态。句意：这所房子昨晚被拆了，它属于我的姑妈，但她已经不在
那里住 了。第一空，根据
last night
及句意可知句子用一般过去时态的被动语态，
break
into“
破门而入
”
，答案为
was broken into
；第二空，
belong to“
属于
”
，无进行和被动语 态，
结合句意可知句子用一般现在时态，答案为
belongs to
。故选
D
。


6
．
No decision __A_ about any future appointment until all the candidates have been
interviewed.

A
．
will be made
C
．
is being made
【答案】
A

【解析】

试题分析：考查时态， 主语是
decision
和动词
make
是动宾关系，所以用被动式，因为后
面的句子
about any future appointment
可以知道动作 未发生，所以用将来时，句子意思
“
关
于未来会议没有做出任何决定直到所有的报考者 已经被采访
”
，所以选
A

考点：考查时态

点评 ：做时态题时，首先看时间状语，由时间状语来确定句子的时态；如果没有时间状
语，可以根据隐含的意 思来确定句子时态。

B
．
is made

D
．
has been made


7
．
—Have you heard of yesterday's gas explosion?

—Yes. Only two of the 35 miners at the scene ________ to have made it out safely.

A
．
have thought B
．
are thought

C
．
had thought D
．
were thought

【答案】
B

【解析】

【详解】

考查 时态语态。句意：
——
你听说昨天的瓦斯爆炸了吗
?——
是的，在现场的35
名矿工
中，只有两名被认为安全获救。此处指现在只有
2
个人被认为 安全获救，用一般现在时的
被动语态，故选
B.


8
．
8 students and 2 teachers at Santa Fe High School by a 17-year-student armed with a
shotgun and a pistol. This is one of the many gun-related tragedies that have happened in the last
2 years.

A
．
killed B
．
were killed

C
．
have killed D
．
have been killed

【答案】
B

【解析】考查被动语态。句意：在圣塔菲高中，一名
1 7
岁的学生手持猎枪和一把手枪，在
圣塔菲高中杀害了
8
名学生和
2
名教师。
8 students and 2 teachers
是句子主语，复数形
式，和
kill
之间是被动关系，再根据
in the last 2 ye ars.
可知这是最近两年发生的与枪有关的
事故之一，可知这是在讲过去的事情，所以句子用 一般过去时态的被动语态，故答案为
B
。


9
．
— Can we play basketball in the school gym?

— No, it ______ during the summer holidays.

A
．
is repaired B
．
is being repaired

C
．
was repaired D
．
has been repaired

【答案】
B

【解析】

【详解】

考查 时态语态。句意：
--
我们可以在学校操场上打篮球吗？
--
不行，暑假期间 操场正在被修
葺。根据句意可知，这里是表示正在进行，所以要用现在进行时。主语
it
和动词之间是被
动关系，所以要用被动语态。故选
B
。


10
．
Only by increasing the number of doctors by 50 percent _______ properly in this hospital.

A
．
can be the patients treated

B
．
the patients can be treated

C
．
can the patients be treated

D
．
treated can be the patients

【答案】
C

【解析】

试题分析：考查部分倒装。句意为：只有增加
50%
的医生，这个医院的病人才能得 到恰当
的医治。
“only
＋状语
”
放于句首时句子须用部分倒装， 故选
C
项。

考点
:
考查部分倒装


11
．
The way the guests ___ in the hotel influenced their evaluation of the service.

A
．
treated

B
．
were treated

C
．
would treat

D
．
would be treated

【答案】
B

【解析】

【详解】

考查时态和语态的用法。句意：在旅馆里客人被对待的方式影响他们对服务的评价。
the
guests ___ in the hotel
是定语从句
U
，修饰
The way
，
treat
是从句的谓语动词，
The guests
与
treat
之间是被动的关系，并且动作已经发生，所以用一般过去时的被动形式。故选
B
。


12
．
The headmaster in our school hopes that we will be more ambitious when we graduate than
when we ________ admitted.

A
．
will get
C
．
got
【答案】
C

【解析】

【详解】

考查语态。句意：我们校长希望我们在毕业的时候比入学的时候更有雄心壮 志。从句中主
语
we
和动词
admit
是被动关系，入学发生在过去 ，此处用一般过去时的被动语态；
got
在
此相当于
were
，故选
C
。

B
．
get

D
．
have got


13
．
Various efforts ________ in the past decades to protect the environment.

A
．
had made B
．
have made

C
．
were made D
．
have been made

【答案】
D

【解析】考查时态和语态。句意：在过去的几十年里，为保护环境做出了各种努力。根据
in the past decades
可知句子用现在完成时态，
efforts
是句子 主语，复数形式，和谓语动词
make
之间是被动关系，所以此处用现在完成时态的被动语态， 故答案为
D
。


14
．
The plan for Xiongan New Area ______ officially on April 1, 2017.

A
．
announced B
．
was announced C
．
announces D
．
is announced

【答案】
B

【解析】考查时态与被动语态。 句意：设立雄安新区的计划在
2017
年
4
月
1
日被官方宣

布。计划是被官方宣布，故用被动语态；动作发生在过去，故用一般过去时的被动语态。
故选
B
。


15
．
--- Why don't we choose that road to save time?

--- The bridge to it .

A
．
has repaired
C
．
is being repaired
【答案】
C

【解析】

考查时态和语 态。句意为：
——
我们为什么不选那条路以节省时间呢？
——
通往那条路的< br>桥正在维修。桥正在被维修，故用现在进行时的被动语态。

答案：
C

B
．
is repaired

D
．
will be repaired


16
．
—It’s so humid these days!

—Don’t worry! The rain ________ to stop from tomorrow.

A
．
will expect B
．
expects

C
．
will be expected D
．
is expected

【答案】
D

【解析】考查动词时态与语态。句意：
——
这 些日子天气潮湿。
——
不要担心！这场雨预
计明天就会停止。根据语境，
“e xpect”
表示现在发生的事情，用一般现在时，
“
停止
”
的动作
发生在明天，且主语
The rain
与
expect
之间是被动关系。故选
D
。


17
．
The singer’s music video nearly 9 million times since it was posted on the Internet four
weeks ago.

A
．
viewed
C
．
was viewed
【答案】
D

【解析】

试题分析：考查动词时态与语态辨析。
A. viewed
，一般过去式；
B. was viewed
过去式的被
动语态；
C. has viewed
，现在完成式；
D. has been viewed
，现在完成式的 被动语态。句意：
自从四个星期前这位歌手的音乐视频被放在互联网上，这个视频的访问量达到了将近< br>9
百
万次。
since
从句用一般过去时，主句用现在完成时
has done
形式，又因
music video
是被
访问的，故要用被动语态。故选
D
。

考点：考查动词时态与语态辨析。

B
．
has viewed

D
．
has been viewed


18
．
—Will Uncle Peterson come to my birthday party tomorrow?

—Pity he ______ to Zimbabwe as a volunteer teacher.

A
．
was sent B
．
has been sent

C
．
had been sent D
．
would be sent

【答案】
B

【解析】考查时态和语态。句意：
——Peterson
叔叔明天会来参加我的生日聚会吗？< br>——
很
可惜他已经被派到
Zimbabwe
去做志愿教师了。由语境可 知，
Uncle Peterson
被派到
Zimbabwe
这是发生在过去 的事情，这个动作对现在产生了影响，故该空应用现在完成时
态。且主语
he
和
send
之间是被动关系，故该句要用被动语态。综上，
B
选项正确。


19
．
A human case of H7N9 was reported in 2014 when a woman______ to be infected with the
bird flu virus.

A
．
confirmed
C
．
was confirmed
【答案】
C

【解析】

试题分析： 句意：一例人感染
H7N9
病毒的报告发生在
2014
年，当时，一名女性被 确诊感
染了禽流感。
Confirm
证实，确认，根据
was reported in 2014
可知，是过去的事情，先行
词是
2014
，定语从句也用一般过去时，排除
B
、
D
；
woman
与< br>confirm
是动宾关系，即她
是被确诊的，故选
C
。

考点：考查时态与被动语态

B
．
had been confirmed

D
．
have confirmed


20
．
Peter is helping set tables in the hall, where John’s birthday party ________.

A
．
is holding B
．
has held

C
．
is held D
．
will be held

【答案】
D

【 解析】考查时态和语态。句意：皮特正在帮着在大厅里放桌子，约翰的生日晚会将在这
里举行。根据前面 语境正在放桌子，可知现在
party
还没举行，马上将要举行，
“
生日晚会
”
与
“
举行
”
之间是被动关系，故选
D
。


21
．
As is expected, it will be not long before our domestically built aircraft Carriers _____ into
operation.

A
．
will be put
C
．
will have been put
【答案】
B

【解析】

【详解】

考查动词时态语态。句意
:
按照预计，在不久的将来， 我们国内制造的航母就会投入使用。
时间状语从句中使用主将从现，如果主句是一般将来时
,< br>从句用一般现在时替代一般将来
时。
before
是从句要用一般现在时。投入 和主语是被动关系。故选
B
。

B
．
are put

D
．
have been put


22
．
If the new safety system _______ to use, the accident would never have happened.

A
．
had been put
【答案】
A

【解析】

【分析】

B
．
were put C
．
should be put D
．
would be put

【详解】


考查虚拟语气。句意：如果这个新的安全系统被投入使用过的话 ，这个事故就不会发生
了。根据主句确定是对过去情况的虚拟，所以从句谓语用
had don e
形式，此外根据句意可
知是被动，用被动语态，故
A
项是正确的。

【点睛】


英语中的三种语气，语气是动词的一种形式，用来说明我们对自 己的话所采取的态度。陈
述语气（疑问，否定，肯定，感叹）祈使语气（命令，要求，建议，警告）虚拟 语气：不
可能发生的事，愿望，建议，与事实相反的假设等
.
虚拟语气在条件中的具体 用法真实条件
句
If you work hard,you’ll surely pass the exam.
虚拟条件句（假设情况不存在，实现机会很
小）
If I were a bird, I could fly freely in the
从句的谓语动词 主句谓语动词
1.
与现在事实
相反动词过去式（
be
一律用
were
）
wouldcouldmightshould+
动词原形
2.< br>与过去事实相反
had donewouldcouldmightshould+have d one3.
与将来事实可能相反
a.
动词过去式（
be
一律
用
were
）
+
动词原形（不能用
would
）
to+
动词原形
wouldcouldmightshould+
动词原形与现在事实 相反
if
从句：动词过去式（
be---were
）主
句：
wouldcouldmightshould+
动词原形
If we had time, we would go with I were you, I
shouldn’t do it weren’t raining, we wouldn’t stay.
与过去事实相反
if
从句：
had done
主
句：
wouldcouldmightshould+have doneIf the teacher hadn’t helped us, we couldn’t have
succeeded.I could have done it better if I had been more he hadn’t been ill, he might
have come.3.
与将来事实可能相反
if
从句：
a.动词过去式（
be
一律用
were
）
+
动词原形（不能用
would
）
to+
动词原 形主句：
wouldcouldmightshould+
动词原
形
If he came tomorrow, I would tell him it should rain tomorrow, I would stay at
home and watch it were to snow tomorrow, they would not go he come
tomorrow, please give the book to him.
错综时间 条件句在虚拟语气中，有时条件从句动作发
生的时间和主句动作发生的时间是不一致的，称为错综时间条 件句。这种句子的形式往往
要根据句子的时间相调整，分别处理。
If you had spoken to him yesterday, you would know
what to do you had followed the doctor’s advice then, you would be all right you
had watered them more, the crops would be growing still better now. (
有时时间会省略）含蓄条
件句有时虚拟条件不用
if
条件从句，而用介词或 介词短语来表示。
They would not be able
to live without him.
（如果没有）
He would have failed but for his teacher’s timely advice.
（要
不是）
=if it had not been forIf only you had worked with greater care!(
要是
......
就好了）
You
would have done the same thing in her a little more care you could have avoid the
traffic accident .
虚拟结合条件句在虚拟语气中，假设的情况有时间可以通过上下文或其他方
式表现出来，并且 虚拟的情况和真实的情况同时存在。
I was ill that day. Otherwise, I would
have taken part in the singing competition.
（实
------
虚）
=I was ill that day. If I hadn’t been ill
that day, I would have taken part in the singing would have bought the piano, but
he didn’t have enough money.
（虚
------
实）
=He would have bought the piano if he had had
enough money, but in fact he didn’t have enough money.
省略
if
倒装条件句在虚拟语气中，
if

从句假设的情况中如果有助动词< br>had, should
和
were
，那么可省略
if
，把
had, should
和
were
放在句首构成倒装，简称省略
if
倒装条件 句。
If he had finished the work yesterday, he
would have gone to the concert with you.=Had he finished the work yesterday, he would have
gone to the concert with I were you, I wouldn’t do that.=were I you, I wouldn’t do I
should meet him, I would tell him about it.=Should I meet him, I would tell him about it.


23
．
—Mum, is the pair of gloves ________ mine?

—Yes. You have to wear another pair.

A
．
washing
C
．
being washed
【答案】
C

【解析】

【详解】

考查时态。句意：
——
妈妈 ，这双正洗的手套是我的吗？
——
是的。你不得不带另一双
了。根据下文可知，手套是 正在被洗，用现在进行时的被动，故选
C
。

B
．
have washed

D
．
having washed


24
．
Commercial and recreational fishing _______ population sizes and also made individuals
smaller, since big fish _______ and smaller ones thrown back.

A
．
decreased; kept
C
．
has decreased; keep
【答案】
D

【解析】

【详解】

考查 时态和语态。句意：商业和休闲捕鱼减少了种群规模，也使个体变小，因为大鱼被保
留下来，小鱼被扔回 大海。结合句意第一空是强调现在的结果，用现在完成时态；第二空
是一般现在时态的被动语态，主语< br>big fish
与
keep
是被动关系，故答案为
D
。

B
．
had decreased; are kept

D
．
has decreased; are kept


25
．
Beijing's new international airport ________ into use in September, 2019, according to the
spokesperson.

A
．
was put
C
．
has put
【答案】
D

【解析】

试题分析：考查时态和语态。句意：按照发言人所说，北京的新国际机场将 在
2019
年投入
使用。根据句意可知，用一般将来时态的被动语态。故选
D
。

考点：考查时态和语态

B
．
will put

D
．
will be put


26
．
Every year a flood of farmers arrive in Shenzhen for the money-making jobs they_____
before leaving their hometowns.

A
．
promised B
．
were promised

C
．
have promised
【答案】
D

【解析】

D
．
have been promised

句意为：每年大量农民工涌入深圳，去寻找他们离乡前别人给他 们许诺的挣钱的工作。此
处农民工是
“
被许诺工作
”
，需用被动语态 ，故排除
A
和
C
两项；
B
项仅表一般过去时的被
动 ；
D
项表示
“
已经被许诺
”
，故选
D
。< br>

27
．
The father,along with his four children,_____ they will be back_____fixed.

A
．
have gone to;isn’t B
．
had gone to;is not C
．
went to;aren’t
been

【答案】
D

【解析】

【详解】

考查 的是主谓一致性及时态。句意：这位父亲和他的四个孩子去杭州了。他们什么时候回
来还没有定下来。< br>along with
，
together with
，
as well as, with
引导并列主语时，谓语动词与
前面的主语保持主谓一致，根据
When they will be back_____fixed.
可知，说话时他们不在现
场，应使用
havehas gone to“
到某地去
”
；
When they will be ba ck
是主语从句，谓语动词应
使用单数形式，结合从句中的时态可知，此处应使用现在完成时， 表示对现在的影响。故
选
D
。

D
．
has gone to;has not

28
．
Amy, as well as her brothers, ________ a warm welcome when returning to the village last
week.

A
．
is given
C
．
was given
【答案】
C

【解析】

【详解】

考查 时态和语态。句意：艾米和她的兄弟们当上周回到村里时，受到了热烈的欢迎。根据
last week
可知，应用过去时，排除选项
A
和
B
；本句的主语是
Amy
，她受到热烈欢迎，所
以用过去时的被动。故选
C
。

B
．
are given

D
．
were given


29
．
The film “Schindler’s List”, was ________ by a real person, named Oskar Schindler

A
．
inspired B
．
prompted

C
．
rised D
．
insured

【答案】
A

【解析】

【详解】

考查过去分词。
A. inspired
鼓舞；
B. prompted
引起，提示；
C. rised
上升；
D. insured
确保。
句意：电影《辛德勒的名单》 的灵感来自一个真实的人，名叫奥斯卡
·
辛德勒。结合句意可

知此处用 被动语态，故答案为
A
。


30
．
It is ______ that the financial crisis is disappearing in some countries.

A
．
reported
【答案】
A

【解析】

【详解】

考查 被动语态。句意：据报道，金融危机正在一些国家消退。句中
It
为形式主语，
tha t
引
导的从句为主语从句，是真正的主句的主语，所缺词为主句谓语动词，主语与动词
report
是逻辑上的动宾关系，是动作的接受者，所以用被动语态。故选
A
。
B
．
to report C
．
reporting D
．
being reported


31
．
People believe that the China Dream is not very difficult ________ so long as the whole
nation works hard for it.

A
．
realizing
C
．
realized
【答案】
D

【解析】

【详解】

考查固定句型和语态。句意：人们相信只要全国人民一起努力中国梦不难实现。
be difficult
to do
结构中，若主语与其后的不定式为动宾关系，那么该不定式 习惯上要用主动形式表示
被动意义。如：
She was difficult to understand at times.
有时候她很不容易理解。能用于此结
构的形容词主要有
convenient, dangerous, difficult, easy, hard, impossible, interesting, nice,
pleasant, safe, unpleasant< br>等。这类结构的特点是句子主语必须是其后不定式的逻辑宾语。
故选
D
。

B
．
to be realized

D
．
to realize


32
．
They are trying to make sure that 5G terminals ________ by 2022 for the Beijing Winter
Olympics.

A
．
will install

【答案】
B

【解析】

【详解】

考查时态和语态。句意：他们正努力确保在
2022
年北 京冬奥会之前安装
5G
终端。表示在
将来某一时间以前已经完成或一直持续的动作，用 将来完成时；
“5G
终端
”
和
“
安装
”
之 间是
被动关系，用被动语态，故选
B
。

B
．
will have been installed
D
．
have been installed

C
．
are installed

33
．
Shakespeare’s play Hamlet into at least ten different films over the past years.

A
．
had been made
C
．
has been made
B
．
was made

D
．
would be made

【答案】
C

【解析】

【详解】

考查动词的时态与语态。句意：在过去的几年里，莎士比亚的戏剧《哈姆雷特》至少被拍
成了十 部不同的电影。
over the past years
表示的是从过去到现在的动作，所以 句子用现在
完成时；
Shakespeare’s play Hamlet
与谓语< br>make
为被动关系，因此选择现在完成时被动语
态。故选
C
。


34
．
—Do you like the mobile game Traveling Frog?

—Yes, the posts about the virtual green frog ________ over 4 million times.

A
．
have read
C
．
would be read
【答案】
B

【解析】

【详解】

考查时态和语态。句意：
——
你喜欢手机游戏旅行青蛙吗？
——
是的，关于虚拟绿蛙的帖
子已经被阅读了
400
多万次。
The posts
和
read
是被动关系，用被动 语态，
“
已经被阅读过
了
”
用完成时态，故选
B
。

B
．
have been read

D
．
are reading


35
．
With the help of high technology, more and more new substances ___in the past few years.

A
．
discovered
C
．
had been discovered
【答案】
D

【解析】

【详解】

考查 时态语态。句意：因为有高科技的帮助，在最近几年中，越来越多的新物质已经被发
现了。根据时间状语
in the past few years,
说明使用现在完成时。根据句意新物质和发明 之
间用被动形式。故
D
正确。

B
．
have discovered

D
．
have been discovered


36
．
It was announced that only when the fire was under control __________to return to their
homes.

A
．
the residents would be permitted

B
．
had the residents been permitted

C
．
would the residents be permitted

D
．
the residents had been permitted

【答案】
C

【解析】

句意：通报说，只有火势得到控制了居民们才被允许回家。这里
I t
是形式主语，真正的主
语是
that
引导的从句；
that
引导的主语从句中，＂
only+
状语从句＂位于句首，状语从句对

应的主句要用倒装语序，且此处表示过去将来，故选
C
。


37
．
An exhibition with 885 cultural relics to be displayed ________ at the Meridian Gate Gallery.

A
．
was held B
．
would hold C
．
has hold D
．
will be held

【答案】
D

【解析】

【分析】

考查时态语态。

【详解】

句意：午门画廊将展出
885
件文物。上文中的
to be displayed
表将来，故本句为一般将来
时。且主语
An exhibition
与谓语动词
hold
构成被动关系，故用
will be held
。故选
D
。


38
．
The classroom ________ by students every day.

A
．
cleans B
．
cleaned

C
．
is cleaned D
．
is cleaning

【答案】
C

【解析】

【详解】

考查时态和被动语态。句意：教室每天都由学生打扫。句子主语
The classroom< br>，单数第三
人称形式，与谓语动词
clean
之间是被动关系，再结合
every day
，可知句子用一般现在时
态的被动语态，故选
C
。


39
．
Are you going to attend the meeting ________ next Saturday?

A
．
holding B
．
hold

C
．
to hold D
．
to be held

【答案】
D

【解析】

【详解】

考查动词不定式一般式的被动式作后置定语。 句意：你要参加下星期六举行的会议吗
?
根据
next Saturday
可知，事情还未发生，
the meeting
和
hold
之间是一种被动关系，所以用动词
不定式一般式的被动式作后置定语，且表示将来。故选
D
。


40
．
We didn’t play football match________.

A
．
was canceled B
．
is canceled

C
．
has canceled D
．
had canceled

【答案】
A

【解析】

【详解】

考查时态语态。句意：昨天我们没有踢足球，比赛取消了。根据句意可知，
match
和

cancel
之间是被动关系，所以用被动语态 ；由
yesterday
可知，这是发生在过去的一件事
情，故用一般过去时的被动语 态，故选
A
。