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