根据句意和首字母提示完成下列句子。

1. There are two c           in her family. One is a boy,the other is a girl.

2. If you study h           , you will get good grades(成绩).

3. People often go swimming in s           .

4. Mr. Black is a reporter. He works for a m         .

5. My grandfather loves to tell some interesting s             .