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2000字范文 > The government has taken some measures to solve the shortage of electricity but it may be

The government has taken some measures to solve the shortage of electricity but it may be

时间:2019-01-26 05:38:33

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The government has taken some measures to solve the shortage of electricity  but it may be

问题补充:

The government has taken some measures to solve the shortage of electricity, but it may be some time the situation improves.

A. since

B. when

C. unless

D. before

答案:

A. since

B. when

C. unless

(答案→)D. before

解析: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。

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