题目：
用下列词的正确形式填写。
1. She is a very good ______ (swim) of the Swimming Club.
2. Kate goes to the Reading Club ______ (two) a week.
3. Tigers have sharp ______ (tooth).
4. These are my dogs, please look after ______ (they).
5. Lily often helps us. She is very ______ (help) to us.
6. My daughter goes to her ______ (dance) lesson every Saturday.
7. It's very late. I think the shop is ______ (close) now.
8. Mr Li is _______ (we) teacher.
9. When is ______ (child) Day?
10. There are two volleyball ______ (match) on TV this afternoon.
答案：
1. swimmer 2. twice 3. teeth 4. them 5. helpful
6. dancing 7. closed 8. our 9. Children's 10. matches
