---We can use QQ to talk with each other on the Internet.

---Really? Will you please show me it?

A. what to useB. how to useC. how can I use D. what can I use

---We can use QQ to talk with each other on the Internet.

---Really? Will you please show me ________ it?             

A. how to use     B. what to use     C. how can I use    D. where can I use

 ---We can use QQ to talk 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

---We car, use QQ to talk with each other on the Internet.

---Really? Will you please show me ______ it?

1. A.
   what to use
2. B.
   how to use
3. C.
   how can I use
4. D.
   what can I use