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题目
题型:不详难度:来源:
John thinks it won’t be long _________ he finishes the tough work.
A.whenB.afterC.sinceD.before

答案
D
解析

试题分析:考查连词,since表示自从…;when当……时候;after在…之后;时间段+ before,过了多久就……;before主要引导时间状语从句,意为“先于”“…之后才”“(不多久)就…”。当主句是将来时时,从句谓语动词须用现在时;当主句是一般过去时或过去完成时时,从句常用过去时。before引导的时间状语从句不能用于否定式。所以选D
点评:判断从句中用哪个连词,需用记住连词的用法,在句中的作用,连词也是高考的热点,需要考生平时多练习。
即学即练:It may be a matter of months _____ it"s ready.
A. as      B. while      C. after         D. before
选D
核心考点
试题【John thinks it won’t be long _________ he finishes the tough work.A.whenB.afterC】;主要考察你对连词等知识点的理解。[详细]
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