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求大神指导

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they will have to decide what to do about the energy crisis before the oil_
A is run out
Bwillbe run out
C runs out
Dwill run out


来自Android客户端1楼2015-04-15 20:48回复
    时间状语从句,主句将来时,从句一般现在时,,sth run out为固定搭配,答案c


    来自Android客户端2楼2015-05-31 22:07
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