The house could fall down soon if no one ______ some quick repair work.A．doesB．
题型：不详难度：来源：
The house could fall down soon if no one ______ some quick repair work.| A．does | B．has done | C．is doing | D．had done |
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答案
| A |
解析
试题分析：句意：如果没有人迅速的修理这个房子，很快它就会倒了。条件状语从句由if或unless引导，表示如果有从句中的动作发生，就会有主句的动作发生。在条件状语从句中，主句是将来时、祈使句或含有情态动词的句子时，这里could表示不确定的可能，不是过去式，从句要使用一般现在时表达将来的意思(即：主将从现)。故正确答案为Ｃ项。 |
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