I _____ the dance performance many times, each giving me a new understanding. [ ]

A. watch

B. watched

C. have watched

D. am watching

用所给词的适当形式填空。

1. The girl studies hard.  She often does her _________ (lesson) at home in the evening.

2. There are two wall ________ (calendar) in the room.  They are new.

3. For ________ (who) is it a birthday party?

4. I'd love________  (go) shopping with my mother.

5. My mother ________ (have) to do housework in the evening.

6. Thank you for ________ (help) me with my English.