第二部分：英语知识运用(共两节，满分45分)
第一节：单项填空(共15小题；每小题1分，满分15分)
21. ---What do you think of the grammar book?
---Oh, it really is _____ useful reference book, which is worth reading ____ second time.
A. a, a B. an, the C. an, a D. the, the
22.All the workers look forward to________ what they should
A. be paid B. being paid C. paying D. paid
23. — Could I use your dictionary? — Sure you ______.
A. Can, Go ahead B. can, Use it C. could, Help yourself D. could, Take it.
24. She ____ the film. She knows nothing about it.
A. can’t see B. can’t have seen C. mustn’t have seen D. must see
25. The teacher doesn’t permit _________ in class.
A. smoke B. to smoke C. to have a smoke D. smoking
26. After going into the concert hall, Tom _________ a friend and went over to greet her.
