We can use QQ to talk with each other online.Good! Will you please show me it?A. what t

问题补充：

We can use QQ to talk with each other online.

--Good! Will you please show me it?

A. what to use

B. how to use

C. when to use

D. where to use

答案：

A. what to use

(答案→)B. how to use

C. when to use

D. where to use

解析：本题的含义为我们可以使用QQ在网上交谈，请问你能告诉我如何使用QQ吗？在英文中疑问词how可以加动词不定式to do来代替从句作宾语，故本题选B。