13. The wallet must be Nancy’s.(改为否定句）

The wallet__Nancy’s.

12. Must I finish my homework this afternoon?(否定回答）

11. Look at the boy. He is wearing a hat.(合并为一句）

Look at the boy___.

10. Helen feels unhappy,__?(反义疑问句）

9. The dictionary must be Tom’s.(改为同义句）

The dictionary must__Tom.

7. anything else_ 8. in our neighborhood_

 4.报警_

5.我不这样认为_ 6.隔壁邻居_

1.相互认识_   2. 一些奇怪的事情_

3.—定是_  

补全对话:选择方框中的情态动间完成下面对话 

Woman：Look! There’s something in the sky.

Man： It (21)_be    a    helicopter.

Woman：No,it (22)_be    a    helicopter.    It’s    too    big.    It    must    be    a    UFO?

Man： A UFO? What’s going on?

Woman ： Look, now the UFO is landing...

Man： And there’s a strange creature getting out. It (23)_be    an    alien.

Woman： And the alien is chasing the man!

Man ： Can you guess what the man is doing?

Woman： He (24)_be running for exercises.

Man：But he’s not wearing sports clothes.

Woman：Well,he (25)_be    late    for work.

Man：But he doesn’t look worried.

Woman： Maybe we should call the police, (pause) Hey, wait a minute, what’s that?

Man：Over there.

Woman:It’s a woman with a camera.

Man：She (26)_be    from the TV news.

Woman：No, look at all those other people. They’re actors. Oh! They (27)_be

making a movie.

20.足球可能还在学校教室里。

The football___in    the    classroom.