用所给单词的正确形式填空。

1. Does Linda agree _____(help) you copy her homework?

2. Students don't like _____(fight)in the classroom.

3. The music teacher taught us _____ (sing) many beautiful songs.

4. There are two _____ (office) languages in Canada.

5. Today is sunny. We can see many kites _____(fly) in the sky.