问题补充：
——We can use QQ to chat with each other on the Internet.
——Really? Will you please show me ?
A. how to use it
B. what to use it
C. how can I use it
D. what can I use it
答案：
(答案→)A. how to use it
B. what to use it
C. how can I use it
D. what can I use it
解析：本题考查的是特殊疑问词+to do sth 或接特殊疑问句作宾语从句，故选A
