15. His brother ________ for three months.

A. has joined the army B. has been in the army C. has become a soldier D. joined the army

14.-Would you like some tea or coffee?　　 -______ is OK.

　 A. Neither　　　　　 B. Either　　　　　 C. Both　　　　　 D. Any

13. Mr. Jack ________ China for several years.

　 A. has been to　　 B. has come to　 C. has been in　 D. came to

12. Neither the students nor the teacher ________ the answer to the question.

　 A. know　　　　 B. knows　　　 C. don’t know　 D. doesn’t know

11. He made some new _________ in science.

　 A. discovers　　 B. discovered　　　 C. discovery　 D. discoveries

10. Have you ever seen him ________?

　 A. ago　　　　 B. two days ago　　　 C. before　　　 D. just now

9. Neither of the two boys ________ from the USA.

　 A. come　　　 B. don’t come　　　　 C. comes　　　 D. doesn’t come

8. -Have a wonderful time!　　　　　 -___________.

A. Have a wonderful time, too.　 B. Thank you　 C. Certainly　 D. You are welcome

7. There are about six ________ students in our school.

　 A. thousand　　 B. thousands　　　 C. thousands of　　　 D. thousand of

6. Maybe when I graduate, I’ll think about ________ an English teacher.

　 A. become　　 B. becoming　　　 C. became　　 D. to become