29．-Dad, must I finish my homework today?

　-No, you ________ . You may do it tomorrow.

　A. needn’t B. mustn’t C. don’t D. won’t

28．Mrs. Green is out. I have to ________ her baby.

　A. look around B. look up

　C. look for 　　D. look after

27．-Where is Mrs. Smith?

　-She isn’t here. She ________ to England .

　A. has gone B. has been C. went D. goes

26．Mike looks ________ than Paul, but they are of the same age.

　A. youngest B. the youngest C. younger D. very young

25．Mid-Autumn Day usually ________ in September or October every year .

　A. come B. comes C. is coming D. will come

24．Do you enjoy ________ English in our class, Mr. Green?

　A. teach B. taught C. to teach D. teaching

23．Betty didn’t come to school yesterday ________ she was ill.

　A. but B. than C. if D. because

22．-Why are you walking to school?

　-Because my ________ is broken.

　A. radio B. watch C. bike D. bag

21．Tomorrow’s meeting is very important. Please ask them ________ there on time.

　A. go B. going C. to go D. went

20．There isn’t ________ water in the glass. Let’s go and get some.

　A. many B. lots C. any D. some