15.　　 I asked the teacher ________________(我该怎么做).

14.　　 I don’t know _______________(做什么).

13.　　 ________________(帮助别人) is my happiness.

12.　　 ________________(每天看报纸) is very helpful.

11.　　 ________________(做早操) is good to your health.

10.　　 ________________(学好英语)is not easy.

9. She said she would _____________________(不再迟到了).

8. I don’t know ______________________(怎样回答这个问题).

7. My little brother is too young ___________(去上学).

6. The teacher told us _________________(背下这些生词).