1 . 从括号中选出合适的情态动词填空。
1. You_________(must /can) be careful with the camera. It will cost you
2. I've ordered some pizza, so we _______(wouldn't/needn't) worry about cooking when we get home, tired from work.
3. The police still haven't found the lost child, but they re doing all they____(can/may).
4. Anita________(could /would) speak three languages before she was six.
5. The restaurant_________(can't/needn't)be very good It's always empty.
6. You ________(mustn't/ needn't) put everything on the shelves until the glue has set hard.
7. She_______(can't/ shouldn't) have left school, for her bike is still here.
8. It ______(must have been/must be) raining when you arrived there.
9. --When did you go to Beijing?
--I ________(might have been/must have been)there in 1994, but I can't remember it clearly.
10. Nobody knows where the jewels have gone and they______ (might/should)have been stolen.