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---I often chat with my friends on the Internet.
---You are so smart! Will you please tell me ________?

— I often chat with my friends on the Internet.

— You are so smart! Will you please tell me____?

A. how to do        B. how to do it     C. how to use    D. when can I use it

— I often chat with my friends on the Internet.

— You are so smart! Will you please tell me____?

A. how to do        B. how to do it     C. how to use    D. when can I use it

— I often chat with my friends on the Internet.

— You are so smart! Will you please tell me____?

A. how to do        B. how to do it     C. how to use    D. when can I use it