(   ) 13. There       a girl singing next door. Can't you hear her beautiful

voice?

A. must be         B. must have

C. can't be        D. can't have

(   ) 12. In autumn there are a lot of      on the ground.

A. leaf    B. leafs C. leaves    I), leafes

(   ) 11. The boy didn't sleep well last night because of the       from the factory.

A. voice    B. noise C. music    D. song

10. I felt        (easy) when I was interviewed by the reporter.

9. There must be some boys      (play) soccer near our house.

8. Many sheep were killed by     (wolf) yesterday evening.

7. We can see some      (policeman) in the picture.

6. There are a lot of birds      (sing) in the trees.

5. The strange      (事件)made everyone worried.

4. The news made us feel      (不安的).