Question

【题目】Hey, you ________ at the computer all day. You should really take a break now.

A.have been sittingB.were sitting

C.did sitD.are sitting

Answer 1

【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，表示从过去开始一直进行的动作，用现在完成进行时态，故选A。