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600字范文 > Why hasn’t he come? on time we would have to put off the trip.A. If he doesn’t comeB. If

Why hasn’t he come? on time we would have to put off the trip.A. If he doesn’t comeB. If

时间:2019-11-02 20:01:40

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Why hasn’t he come? on time  we would have to put off the trip.A. If he doesn’t comeB. If

问题补充:

Why hasn’t he come? on time, we would have to put off the trip.

A. If he doesn’t come

B. If he will not come

C. If he didn’t come

D. If he wouldn’t come

答案:

A. If he doesn’t come

B. If he will not come

(答案→)C. If he didn’t come

D. If he wouldn’t come

解析:句意为:他为什么还没来?如果他不来的话,我们就只好将旅行的时间往后延。

If引导的虚拟语气,如果从句为现在时,则使用虚拟语气时用一般过去式;如果从句为过去式,则使用虚拟语气时用过去完成时;如果从句为将来时,则使用虚拟语气时用一般过去式或should+动词原形/were+ to do .根据主将从现的原理,if引导的真实条件句为现在时,则从句用虚拟语气时用一般过去式,故选C

考点:考察if引导状语从句的用法

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