_________ (fly) will be very cheap．

6.Manuel ____(fly) to London next Monday. 

7. The funny story made us 　　　　 (laugh) loudly.

8.Are you going to ____(make) a model plane? 　

9. “Why are you late for school again?” the teacher asked 　　 (angry).

10.There are many art ____(exhibition) in our city.

We _____ fly kites in places along the railway line. It _______ cause an accident.

1. A.
   may, should
2. B.
   mustn't, should
3. C.
   shouldn't, may
4. D.
   needn't, must