21. ______ the government argees to give extra money, the theatre will have to be closed next month.

　　A. Unless

　　B. If

　　C. Since

　　D As

　　22. To reduce weight, plastic has taken _______ of iron and steel in making boats.

　　A. its place

　　B. place

　　C. the place

　　D. a place

　　23. -Let me help you with your suitcase.

　　-________.

　　A. You’re very nice

　　B. Yes, you’re so helpful

　　C. No, I can do

　　D. It’s very kind of you

　　24. These three English novels are for you. The rest _______ for the other students in your class.

　　A. were

　　B. is

　　C. are

　　D. was

　　25. You _______ have seen Jane in her office last Friday; she’s been out of town for two weeks.

　　A. couldn’t

　　B. mustn’t

　　C. wouldn’t

　　D. shouldn’t

　　26. Henry never said that he was good at maths, _______ he?

　　A. was

　　B. did

　　C. didn’t

　　D. wasn’t

　　27. The little girl showed the policeman the corner _______ she was knocked off her bike.

　　A. and

　　B. which

　　C. that

　　D. where

　　28. The snow was so deep that the climbers could not ________ to the camp.

　　A. get over

　　B. get along

　　C. get through

　　D. get around

　　29. In need of money, Bob had to take ______ job that was offered to him.

　　A. whatever

　　B. no matter what

　　C. whichever

　　D. no matter which

　　30. My friend and I would like to go to the concert, but ________ of us has got a ticket.

　　A. both

　　B. none

　　C. neither

　　D. all