问题
选择题
—Must I finish the work before five o'clock?
—No, you _____. [ ]
A. needn't
B. mustn't
C. have to
D. don't
答案
答案：A
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—Must I finish the work before five o'clock?
—No, you _____. [ ]
A. needn't
B. mustn't
C. have to
D. don't
答案：A