—Must I mop up the floor now? —No, you _
题型:选择题
问题:
—Must I mop up the floor now?
—No, you _________. [ ]
A. needn't
B. can't
C. shouldn't
D. mustn't
—Must I mop up the floor now?
—No, you _________. [ ]
A. needn't
B. can't
C. shouldn't
D. mustn't