题目内容：

    Sam Scott and his sister are both students. They____to school every day. Some students often take a bus to school. They sometimes play____after school. They do____homework before dinner. They watch TV____about an hour. They go to bed_____ It’s a good habit.

1.A. by bus B. on foot C. walk D. walks

2.A. volleyball B. the soccer C. piano D. card

3.A. her B. his C. their D. one’s

4.A. at B. for C. in D. on

5.A. early B. late C. later D. often