—What were you doing this time yesterday? —I some cleaning at home. A. am doingB. was do

发布时间：2020-08-21 17:31:49

—What were you doing this time yesterday?
—I      some cleaning at home.
A. am doing
B. was doing
C. do
D. did

网友回答

A. am doing
(答案→)B. was doing
C. do
D. did
解析：此题考查现在进行时的基本结构。根据上文，昨天这个时候你在正在做什么？可知下文描述的是过去某时正在进行的动作，故用过去进行时态，选B。
以上问题属网友观点，不代表本站立场，仅供参考！