They won't be back home until the work ____ .A.was done B.will be done C.is done D.had been done为什么选C,有什么规则吗?请详解,

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Theywon''tbebackhomeuntilthework____.A.wasdoneB.willbedoneC.isdoneD.hadbeendone为什么选C,有什么规则吗?请详解,Theyw

They won't be back home until the work ____ .A.was done B.will be done C.is done D.had been done为什么选C,有什么规则吗?请详解,
They won't be back home until the work ____ .
A.was done B.will be done C.is done D.had been done
为什么选C,有什么规则吗?请详解,

They won't be back home until the work ____ .A.was done B.will be done C.is done D.had been done为什么选C,有什么规则吗?请详解,
【They 主语】【won't be back home谓语】【 until the work is done 时间状语】
选C.
句意:直到这项工作完成他们才会回家.
原因:
时态搭配原则——在时间、条件状语从句中,主句用一般将来时,从句要用一般现在时代替一般将来时.
【until the work is done 】是时间状语,因此不用B,而改用C.
祝你开心如意!

时间状语从句和条件状语从句有一种特殊现象:主将从现。本题就是。即:主句用一般将来时,则从句用一般现在时。或者知道从句用一般现在时则主句用一般将来时。也就是说主从句这两个条件具备其一,那么另一个一定同时具备。

在状语从句中 容易出现的考点:主将从现
"主句用将来时,从句部分用一般现在时"
有此考点的状语从句有:
时间状语从句,条件状语从句,no matter+疑问词和疑问词+ever引导的让步状语从句

句中until“直到···才····”引导的是时间状语从句
主句部分也用了将来时态,故从句部分选C,一般现在时...

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在状语从句中 容易出现的考点:主将从现
"主句用将来时,从句部分用一般现在时"
有此考点的状语从句有:
时间状语从句,条件状语从句,no matter+疑问词和疑问词+ever引导的让步状语从句

句中until“直到···才····”引导的是时间状语从句
主句部分也用了将来时态,故从句部分选C,一般现在时

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