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— May I go to the concert with you?
— I’m afraid not ____ you have a ticket, because I have only one.
A. since B. if C. unless D. though
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—Did you have a good weekend?
—_____. We enjoyed ourselves very much in the amusement park.
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A.Of course |
B.Not bad |
C.I'm not sure |
D.I hope so |
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—I can’t stop smoking, doctor.
— For your health, I’m afraid you ______.
A. may B. can C. have to D. need
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