What you at ten yesterday evening? A. have doneB. did doC. were doingD. will do

问题补充：

What you at ten yesterday evening?

A. have, done

B. did ,do

C. were doing

D. will do

答案：

A. have, done

B. did ,do

(答案→)C. were doing

D. will do

解析：句意：昨晚八点你在做什么？本题考查动词的时态。at ten yesterday evening “昨晚八点钟”是过去的一个具体时间点，要求动词用过去进行时。结合句意，故选C.