Question

【题目】—What is Lucy doing?

—She________ her homework at home.

A. do B. does C. doing D. is doing

Answer 1

【答案】D

【解析】句意：——露西正在干什么？——她在家正在做作业。本题考查现在进行时。根据问句可知用答句要用现在进行时态。现在进行时的构成be +ving(动词的现在分词)。结合句意和选项可知选D。