You'd better stay at home...You’d better stay at home ______they ______.A.during,leave B.while,leave C.during,are away D.while,are away答案是选D的.想问问为什么选D而不是选C啊?

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You'd better stay at home...You’d better stay at home ______they ______.A.during,leave B.while,leave C.during,are away D.while,are away答案是选D的.想问问为什么选D而不是选C啊?
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You'd better stay at home...You’d better stay at home ______they ______.A.during,leave B.while,leave C.during,are away D.while,are away答案是选D的.想问问为什么选D而不是选C啊?
You'd better stay at home...
You’d better stay at home ______they ______.
A.during,leave
B.while,leave
C.during,are away
D.while,are away
答案是选D的.想问问为什么选D而不是选C啊?

You'd better stay at home...You’d better stay at home ______they ______.A.during,leave B.while,leave C.during,are away D.while,are away答案是选D的.想问问为什么选D而不是选C啊?
选c的话后面要用leaving或者being away之类的分词形式.

while可以表示一段时间,在…………的时候,而后面选are away则表示的是一种状态,leave是非延续性动词,不能选的,,明白??

选while表示当,,,的时候,during也可以表示在,,,的时间段内,后面应该接一个名词性的词组,比如:u‘d better stay at home during the time while they r away.这里during后面是名词time而不是一个句子。

用while是时间状语从句,后面明显是个完整的句子,而during后面不能接完整的句子,只能是介词短语之类的~!