I left my umbrella in mh room .Could you wait _____I go back to get it?A:whenB:ifC:whileD:before要有理由

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I left my umbrella in mh room .Could you wait _____I go back to get it?A:whenB:ifC:whileD:before要有理由
I left my umbrella in mh room .Could you wait _____I go back to get it?
A:when
B:if
C:while
D:before
要有理由

I left my umbrella in mh room .Could you wait _____I go back to get it?A:whenB:ifC:whileD:before要有理由
选择 while,while 表示一边……一边……,两个动作同时进行.这里的意思是:我回去拿,你能在这等吗?而when 则表示突然.if 就更不行了,没有表示时间的意思.

A 不对,go back 是非延续性动词只表示回去去取的短暂瞬间,不表示一段时间,不能表示在回去的一段时间等;而C while 强调同时进行的动作往往是指不同的人在同一时间正在进行的动作,该接进行时不能接非延续性动词;本答案应该是B 才对,不考虑D。while表示一段时间时该是状态性的动词短语,如:While I am out / away 等等。...

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A 不对,go back 是非延续性动词只表示回去去取的短暂瞬间,不表示一段时间,不能表示在回去的一段时间等;而C while 强调同时进行的动作往往是指不同的人在同一时间正在进行的动作,该接进行时不能接非延续性动词;本答案应该是B 才对,不考虑D。while表示一段时间时该是状态性的动词短语,如:While I am out / away 等等。

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C 你可以等我拿到它吗?

while

C.while
表示在...期间
在我回去取伞的期间你能等我吗?

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