1.As I have nothing to do now,I _____as well go with you.
A)might
B)would
C)could
D)may
2.It's the first time that she has been to the United States,________?
A)hasn't she
B)isn't it
C)has she
D)is it
3.Since the bus is crowed,we______.
A)had better walk to home
B)have better walk home
C)had better walk home
D)had better to walk home
4.To succeed in a difficult task ,_______.
A)one needs to work hard
B)to work hard is needed
C)you need be a hard-working person
D)to work hard is what one needs
5._____to have lunch with us today?
A)Do you like
B)Would you like
C)Will you like
D)Shall you like
6.You _______him that the day before.
A)ought not to have told
B)must not have told
C)should not tell
D)ought not to tell
7.I________the operation unless it is absolutely nesessary.
A)would rather not to have
B)would rather not have
C)would rather not had
D)would rather that I not have
8."You missed a golden opportunity.""Yes,I ______that job when it was offered."
A)must take
B)should have taken
C)might have taken
D)ought to take
9.The story was so funny that she couldn't help______.
A)laughing
B)but to laugh
C)to laugh
D)not laughing
10.When we reached the station,the train had still not arrived;so we ________.
A)needed not to funny
B)needn't have hurried
C)need not to have hurried
D)didn't need to hurry
Exercise 2 辨认错误

1.Had(A)Aristotle asked his wife to keep her mouth open while(B) he counted(C) her teeth,he could avoid(D) the mistake of thinking that women have fewer teeth than men.
2.John must be(A) a restless(B) person.He kept(C) moving(D) from country to country.
3."Whatever you decide(A),you'll let(B) me know by phone,won't you(C)?" "Yes,Mr.Brown,I certainly must(D)."
4.We requested(A) that the superintendent of the building clean up(B) the storage room in the basement(C) so that the children had(D) enough space for their bicycles.
5.You needn't(A) have interrupted(B) the class to tell me that;you could come(C) to me afterwards(D).

答案：1. D 2. B 3. C 4. A 5. B 6. A 7. B 8. B 9. A 10. B

Exercise 2
1. D (改为：have avoided）
2. B (改为：must have been)
3．D (改为：will)
4. C (改为：might have)
5. B (改为：have come)

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