But for the heavy traffic, the police ___ the thieves who tried to escape in the
题型：不详难度：来源：
But for the heavy traffic, the police ___ the thieves who tried to escape in the stolen car. | A．would not catch | B．couldn’t have caught | C．haven’t caught | D．couldn’t catch |
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答案
| B |
解析
| 考查虚拟语气。根据句中but for (要不是)得知条件，要不是交通繁忙，警察就不能抓住企图逃跑的贼了。couldn’t have done 本不能做……却做到了。 |
举一反三
Generally speaking, my grandmother is nice and kind, but she _______ be very
stubborn at times.| A．should | B．shall | C．must | D．can |
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— Mum, would you please buy me an MP5 player?
— If you can help do some housework the whole vacation, you ____ have one as a reward. | A．must | B．need | C．would | D．shall |
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--Pity you missed the lecture on nuclear pollution.
-- I ___ it, but I was busy preparing for a job interview.| A．attended | B．had attended | C．would attend | D．would have attended |
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—The contest is so easy, but you fail to pass it．
—I’m sorry it ______ be this way．| A．need | B．should | C．may | D．would |
|
---What did you say to Julia? I saw her crying in the dormitory alone.
--- It ______ my fault. We talked happily when I was with her in the classroom.| A．mustn’t have been | B．should have been | | C．shouldn’t have been | D．couldn’t have been |
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