18.事实上他不知道怎么做？

　 _______ _______, he doesn’t know how to do it.

17.你认识他多久了？

　 How long _______ you _______ him?

16.我姐姐在北京国际学校工作。

　 My sister _______ _______ Beijing International School.

15. I don’t know why Wang Xiaoming ______ us recently.

A. hasn’t wrote　 B. hasn’t written　 C. doesn’t write　　 D. isn’t writing

14. My father gave me some money _______ some food for my grandparents

A. buy　 B. bought　　 C. buying　 D. to buy

13. They have been in Shenzhen since _______.

A. three weeks　 B. three days before　 C. four months ago　 D. next week

12. ---Has the little boy been to America?

　 ---________.

A. Yes, he did 　　　B. No, he didn’t.　　 C. No, he hasn’t　　 D. Yes, he hasn’t.

11. The factory has helped many poor children since it _______.

A. started　　　 B. starts　　 C. has started　　 D. is starting

10. It’s easier _______ (learn) a foreign language when you visit a foreign country.

9. His little brother enjoys _______ (play) football after school.