【题目】—What is he doing?—He his MP4.A.is listeningB.is listening toC.listeningD.listening to
【答案】B【解析】问句 What is he doing?是现在进行时,答句也需要用现在进行时,listen to 是固定短语,故选 B。句意是:—他正在干什么?—他正在听他的 MP4。