【题目】Hey, you ________ at the computer all day. You should really take a break now.
A. have been sitting B. were sitting
C. did sit D. are sitting
【答案】A
【解析】
考查现在完成进行时态。句意：嘿，你整天都坐在电脑前。你现在真的应该休息一下。结合句意可知句子用现在完成进行时态，故选A。
【题目】Hey, you ________ at the computer all day. You should really take a break now.
A. have been sitting B. were sitting
C. did sit D. are sitting
【答案】A
【解析】
考查现在完成进行时态。句意：嘿，你整天都坐在电脑前。你现在真的应该休息一下。结合句意可知句子用现在完成进行时态，故选A。
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