问题
选择题
—Must we finish our homework before dinner?
—No, you _____.[ ]
A. mustn't
B. must
C. needn't
D. need
答案
答案：C
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—Must we finish our homework before dinner?
—No, you _____.[ ]
A. mustn't
B. must
C. needn't
D. need
答案：C