單項選擇He_____whentheUFOarrived.     A.wassleeping  B.were...

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問題詳情:

單項選擇He_____whentheUFOarrived.     A.wassleeping  B.were...

單項選擇

He _____ when the UFO arrived.

      A. was sleeping   B. were sleeping    C. has slept        D. is asleep

【回答】

A

知識點:動詞時態

題型:選擇題

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