It’s two and a half weeks since the exchange students Taixing.A. arrivedB. reached C. hav

发布时间:2020-08-21 06:12:26

It’s two and a half weeks since the exchange students      Taixing.
A. arrived
B. reached
C. have been in
D. have arrived in

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A. arrived
(答案→)B. reached
C. have been in
D. have arrived in
解析:It’s+段时间+ since引导的从句表示自从以来已经多久了。Since引导的句子要用过去式,把C,D排除。
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