The government has taken some measures to solve the shortage of electricity, but

The government has taken some measures to solve the shortage of electricity, but

题型:不详难度:来源:
The government has taken some measures to solve the shortage of electricity, but it may be some time ____________ the situation improves.
A.sinceB.whenC.unlessD.before

答案
D
解析

试题分析:考察固定句式。固定句式:It be 一段时间 before…一段时间以后某事才发生;如果before后面使用一般现在时,前面的主语使用将来时;如果before后面使用一般过去时,前面也使用一般过去时。句意:政府已经采取措施来解决电量短缺的问题,但是也许要一段时间以情况才会有所改善。故D正确。
点评:固定句式的考察是时态以及连词考察的重点,本句中的固定句式:It be 一段时间 before…一段时间以后某事才发生;如果before后面使用一般现在时,前面的主语使用将来时;如果before后面使用一般过去时,前面也使用一般过去时。
举一反三
It must have rained last night, ________ the ground is wet now.
A.forB.becauseC.sinceD.now that

题型:不详难度:| 查看答案
—I wonder how much you charge(要价) for your services.
—The first two are free    the third costs¥30.
A.whileB.untilC.whenD.before

题型:不详难度:| 查看答案
     I admit that there are problems, I don’t think that they can’t be solved.
A.WhileB.WhenC.AsD.For

题型:不详难度:| 查看答案
Tom sat under a tree and seeing his friend, _____  up in no time.
A.to standB.standingC.stoodD.would stand

题型:不详难度:| 查看答案
Super Lin Dan has become a world-famous badminton player. It is years of hard training and efforts, I think, _____ has made him ______he is today.
A.that; whatB.what; what C.what; thatD.which; what

题型:不详难度:| 查看答案
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