Question

【题目】—________ ( )

— I'm reading a book.

A.What did you do?B.What are you doing?C.What does he do?

Answer 1

【答案】B

【解析】

根据答语“我正在读书。”可知问句是询问“你在做什么？”答语是现在进行时，问句也要用相同的时态。A. What did you do? 你做了什么？该句是一般过去时态；B. What are you doing? 你在干什么？该句是现在进行时态；C. What does he do? 他是做什么的？该句是询问职业的。故选B。