---What time do you expect me back,mom?---Say,____half an hour A.at B.before C.in D.for帮我翻译一下,还有就是为什么只能选C而不能选D

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---What time do you expect me back,mom?---Say,____half an hour A.at B.before C.in D.for帮我翻译一下,还有就是为什么只能选C而不能选D
---What time do you expect me back,mom?---Say,____half an hour A.at B.before C.in D.for
帮我翻译一下,还有就是为什么只能选C而不能选D

---What time do you expect me back,mom?---Say,____half an hour A.at B.before C.in D.for帮我翻译一下,还有就是为什么只能选C而不能选D
妈妈,你希望（要求）我什么时候回来啊? 嗯,半个小时以内.
c,在……时间段,D一般用于现在完成时.

求采纳

——妈妈，你想我什么时候回来呢？——要我说的话，半个小时以内。表示多少时间以内用in 或者是within。用for 的话一般跟完成时搭配，表示一段时间

妈妈，你希望（要求）我什么时候回来啊？嗯，半个小时之后。

in half an hour反以为在半个小时之内
for +时间段是用来回答“How long···？”提问的

What time do you have the time? what do you do at break time? what do you do at break time what do you do at break time What time do you get up? what time do you usually get up what time do you go to school? What time do you have English 是 What time do you u_______get up? what time do you usua11y get up? what time do you have breakfast答语 what do you have at breakfast time? What time do you get up?同义词 What time do you usually to school? what time do you have pe? what will you do at this time? What time do you have dinner?意思 what time do you go to bed? Iunch,you,do,time,what,have?