People who drink wine __________ to drive after May Day．A.don’t allowB.isn’t allowedC.mustn’t allowD.mustn’t be allowedB为什么错?

People who drink wine __________ to drive after May Day．A.don’t allowB.isn’t allowedC.mustn’t allowD.mustn’t be allowedB为什么错?
People who drink wine __________ to drive after May Day．
A.don’t allow
B.isn’t allowed
C.mustn’t allow
D.mustn’t be allowed
B为什么错?

People who drink wine __________ to drive after May Day．A.don’t allowB.isn’t allowedC.mustn’t allowD.mustn’t be allowedB为什么错?
B的话is 不对,因为people是复数,所以应该用are才对.

people 这里是复数， 所以不能用 isn't