题目内容
In this district for five months or more of the year, no construction can be done _______ the rainy season makes it impossible.?
A. before B. while C. until D. when
D
解析:
考查关系副词when引导定语从句,指代five months or more of the year。

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题目内容
In this district for five months or more of the year, no construction can be done _______ the rainy season makes it impossible.?
A. before B. while C. until D. when
D
考查关系副词when引导定语从句,指代five months or more of the year。
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