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—Icalledyouat4:00yesterdayafternoon,butnooneanswered.  ...

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问题详情:

—Icalledyouat4:00yesterdayafternoon,butnooneanswered.  ...

— I called you at 4:00 yesterday afternoon, but no one answered.  

— Sorry, I _____ with my friends at that time. 

A. swim            B. swam                C. will swim      D. was swimming

【回答】

D

知识点:动词时态

题型:选择题

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