选择合适的答语. ( ) 1. What did you do yesterday? ( )

( ) 2. Did Mary learn Chinese?

( ) 3. What is she doing?

( ) 4. Who are they?

( ) 5. Is this your grandma?

( ) 6. How was it different?

( ) 7. Is she dancing now?

( ) 8. Why is he eating ice-cream?

B. She is talking to her friend.

C. I went to the park.

D. Yes,it is.

E. No,she didn't.

F. Because he feels hot.

G. There weren't any buses.

H. Yes,she is.