当你邀请别人一块去打乒乓球时，你应说：
A. I want to play ping-pong.
B. Let’s play ping-pong.
C. You can play ping-pong.
( )I am____ to send an email to Mum.
A. go B. going C. went
( )______ did you go last Sunday?
A.What B. Where C. How old
( )I ____ a lion dance in the street yesterday.
A.see B. saw C. seeing
( )Can you tell me more _____it?
A. About B. about C. on
( )These photos _____ great!
A. is really B. are really C. are real