13. At the last place Gary worked, they ______ an annual company picnic. All the employees _____ bring their families along and spend the day at a nearby park. It was great.

　 A. had to have; had to　　　　　　　　 B. used to have; couldn’t

　 C. would have; didn’t have to　　　　　 D. used to have; would

12. Well, really _____ now is start learning what to do with this software and read a lot of references, learn and practice _______ you can.

　 A. that you need do; whatever　　　　　 B as should you do; the longer hours

　 C. how you should start; the most　　　　 D. what you should do; as much as

11. --- Did you make sense of what the man said just now?

--- No, his meaning didn’t ________. Would you explain it to me?

A. get through　 B. get off　 C. get across　 D. get out

10. ---Do remember to charge the battery for 12 hours when you first use it.

--- ________.

A. Thank you, I remember.　　 B. What for　 C. Up to you　 D. Got it

9. The cause he had devoted himself ________ a perfect success.

A. to proved　 B. proved　 C. to prove　 D. to proving

8. If ________ in wet sand, vegetables can remain fresh for a long time.

A. being buried　 B. having buried　 C. buried　 D. burying

7. So difficult _______ it to acquire a large vocabulary without the help of a teacher that he was close to giving up.

A. he have left　 B. have he felt　 C. he did felt　 D. did he feel

6. It is great fun to visit Disneyland. Just _________ playing with those cartoon characters you watch on TV.

A. to imagine　 B. imaging　 C. have imaged　 D. imagine　

5. It was strange that you ______ for Maggie’s address. I just got a letter from her---the first one since her family moved on August 31, 1999.

　 A. should have asked　　 B. would have asked　　　 C. shall ask　　 D. might ask

4. We ______ at a very attractive hotel on the way back from Paris.

　 A. put up　　　 B. dropped out　　　 C. took in　　 D. picked up