16. --- How long ______ each other before they　 _____ married?　

--- For about a year.

A. have they known; get　　　　　　 B. did they know; were going to get

C. do they know; are going to get　　　 D. had they known; got

15. My dictionary _______, I have looked for it everywhere but still _______.

A. has lost; don’t find　　　　　 B. is missing; don’t find

C. has lost; haven’t found　　　 D. is missing; haven’t found

14. You won’t know if the coat fits you until you _____ it on.

　 A. will try　 B. are trying　 C. tried　　 D. have tried

13. I decided to go to the library as soon as I _______.

　 A. finish what I did　　　　　　　 B. finished what I did

　 C. would finish what I was doing　　 D. finished what I was doing

12. If the dog wins tomorrow, he _____ sixteen races in the past three years.

　 A. has won　　 B. will win　　　 C. will have won　 D. would have won

11. However much _____, it will be worth it

　 A. does the watch cost　　　 B. costs the watch　

C. the watch will cost　　　 D. the watch costs

10. --- Was the driving pleasant when you vacationed in Mexico last summer?

　 --- No, it _____ for four days when we arrived, so the roads were very muddy.

　 A. was raining　　 B. would be raining　 C. had been raining　 D. has rained

9. --- Are you going to the movies tonight?

　 --- Yes, I ______ my work by that time.

　 A. will finish　　 B. finish　　　 C. am going to finish　　 D. will have finished

8. In ancient days (古代)the earth ______ to be flat.

　 A. is believed　 B. was believed　　 C. has believed　　 D. believed

7. It _____ every day so far this week.

　 A. is raining　　 B. rained　　　 C. rains　　 D. has been raining