问题
选择题
—Must we finish the work before six?
—No, you ______. You can do it tomorrow.[ ]
A. can't
B. needn't
C. mustn't
D. may not
答案
答案：B
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—Must we finish the work before six?
—No, you ______. You can do it tomorrow.[ ]
A. can't
B. needn't
C. mustn't
D. may not
答案：B