A: 用方框内所给词的适当形式填空.
swim    noise   hundred    dangerous   miss
【小题1】You mustn’t be _____ in the library.
【小题2】Let’s go __________ in the pool after school.
【小题3】There are six ______ students in our school.
【小题4】Lucy __________ her parents very much when she goes out with us.
【小题5】We should save elephants. They are in great ______.