20.　 He didn’t do his homework ________, though he had ________ .　　

A. carefully enough, enough time　 B. carefully enough , time enough　　　　　

C. carelessly enough , enough time　 D. enough carefully , enough time

19. -I don’t have a pen to write _______, Can you borrow me one?

-Of course, here you are.

A. in　　　 B.　 on　　　 C. with　　　　 D. by

18. The National Day is coming, we’ll have 8 days ______ this year.

A. on　 　B. off 　　C. up 　　D. down

17. - How many English songs ______ you_____ in the last two years?

- About ten.

A. have, learned 　B. has, learned　　　 C. have, learn　　 D. did, learn

15. - I’m too busy ____ to my parents often.　

　- Why not call them _____ ?　

　　 A. writing , instead　 B. to write, instead　 C. written , instead of　　 D. write , instead of　 16. When we meet some new words, we’d better______ in a dictionary.

A. look out them　　　 B. look up them　　　 C. look them up　　 D. look them out

14.I find _____very difficult to understand people who speak fast.

A .that　　　　 B. this　　　　　 C. it　　　　 D. it/s

13.－Will you be able to come to my party?

　 － I _______.

A. believe yes　　　　 B. am afraid not　　 C. don’t hope so　　 D. don’t hope