题目内容：

根据句意及括号内所给单词的提示填空

1.One of students in our class ______(fall) into the river yesterday.

2.The twins have many______ (different) between them.

3.If you want ______(much)information about the trip ,please call us at 291-13542.

4.Listen! Tom is_____ (sing)in his room.

5.It is really _________(danger)for young children to play with fire.