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  • 更新 2022-09-03
  • 科目 英语
  • 题型 单选题
  • 难度 容易
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32. –Why, I couldn’t get you on the phone this morning.
--We _____ tennis in the yard when you called.

A.must be playing B.could be playing
C.must have played D.must have been playing
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32.–Why,Icouldn’tgetyouontheph