问题
选择题
—I can't stop smoking, doctor.
—For your health, I'm afraid you _____. [ ]
A. may
B. need
C. have to
D. must
答案
答案：C
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—I can't stop smoking, doctor.
—For your health, I'm afraid you _____. [ ]
A. may
B. need
C. have to
D. must
答案：C