给教新概念的老师们使用
(A. must, B. can)
4. He has eaten a lot at lunch, he _____ be seriously ill.
( A. mustn’t, B. can’t)
5. What’s the matter with you? You look pale, you ______ go to see the doctor. (A. must, B.need)
6. You _____ do whatever you like at home, but you _____ keep the rules at school. ( A.must, B.can, C.need)
7. The streets are so wet that it ___ rained last night.(A.must have,B.can have)
8. She seems to know nothing about the accident. She _____ been here.
(A.can’t have, B.mustn’t have)
9. He is not at home, he ____ gone to the office.
(A. can have, B.may have)
10.The box is very heavy. I think there ______ some books in it.
(A. may be, B. may have been)
七 用形容词的适当形式填空
1. An elephant is __________(big) than a horse.
2. This is the ___________ (helpful) servant we have ever emplyed.
3. My elder sister is four years __________ (old) than I.
4. A car can not run _______________ (fast) a train, but it can run _____ (fast) than a bicycle.
5. Beijing is one of _____________(large) cities in our country.
6. A: Are you busy now? B: No, I am not ___________ (busy) I was yesterday.