-WecanuseQQtotalkwitheachotheronline. -Really?Couldyou...

问题详情：

 - We can use QQ to talk with each other online.

 - Really? Could you please show me _______it?

    A. what to do     B. when to do    C. how to do        D. why to do

【回答】

C

知识点：非谓语动词

题型：选择题