— You can use QQ to chat with your parents on the Internet.
— I know, but could you tell me ___________________?
A. when I can use it B. what I could use it
C. when can I use it D. how can I use it
— You can use QQ to chat with your parents on the Internet.
— I know, but could you tell me ___________________?
A. when I can use it B. what I could use it
C. when can I use it D. how can I use it
A