问题

_____Ifinishmyhomeworknow—No,you_____.Yourworkisovertoday.
A:;Can't;must;
B:;Must;don't;have;to
C:;May;couldn't;
D:;Couldn't;could;
B:;Must;don't;have;to
C:;May;couldn't;
D:;Couldn't;could;
正确答案是: