问题

Could I watch TV, mum I want to have a rest.—No,you _______. You must finish your homework first.
A:mustn't
B:couldn't
C:may not
D:can't;
B:couldn't
C:may not
D:can't;
正确答案是:
同类题型
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______ do I save the document on the computer—Please click “save” and write a name for it
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