问题

May we go home mow — No, you____. You____ to go home until5 o’clock.
A:mustn’t; are allowed
B:don’t have to; are supposed
C:needn’t; aren’t allowed
D:can’t; aren't supposed;
B:don’t have to; are supposed
C:needn’t; aren’t allowed
D:can’t; aren't supposed;
正确答案是: