Read and match.
1. When is Christmas? a. It's very lovely.
2. What can you see in the tree?   b. I watch TV on Sundays.
3. Is Chinese New Year in February? c. It's in December.
4. Can you tell me about your cat? d. Yes, I do.
5. What do you do on Sundays?   e. I can see some birds.
6. Do you like Thanksgiving?   f. Yes. It is.

—______ did you do last night? ( )
—I did my homework.

A．When

B．Where

C．What

We often ______ mountains on summer holiday. ( )

A．climb

B．climbed

C．climbs