3. A number of boys _______ playing basketball at the moment.

2. The number of students in the school _______ now rising.

1. Every student _______ got a book.

7. become

4. to live　 5. have done 　　6. Dream

9. met　　 10. can’t help

　　　 (B) 1. looked　 2. to know　　　 　　　 　3. have thought

6. sang　　 7. was　　 　　　　　 8. working

4. had; got (gotten) 5. to go

10. had worked

7. was having　　　 8. belongs　　 　 　9. finishes