Question

【题目】—What are you doing? ( )

—____________

A.He is putting on his trousers.

B.I am putting on my trousers.

Answer 1

【答案】B

【解析】

句意：—你在做什么？—我在穿我的裤子。问句主语是you，答语主语应用I代替。故选B。