---What's the man _______?---I don't know.A.talking B.waiting C.taking D.listening

问题描述:

---What's the man _______?---I don't know.A.talking B.waiting C.taking D.listening

C
其它选项都是不及物动词,不可以有宾语(what)
请及时采纳,不懂继续问( 天天在线 )