7．I’d like to help 　　　　　(无家可归)people.

6．You could 　　　　　　(自愿服务)in a hospital.

5．What’s wrong with the flowers?　 Some of the l　　　　 are turning yellow.

4．The girl ate too many c　　　　 ．So her teeth are bad.

3．Before you borrow something from a friend, you’d better ask his or her p　　　　

2．The French book must b 　　　　to Lily．She’s the only one who's studying French．

1．Everyone in my class w　　　　　 　about the coming exam.