Parking___here.A.doesn't allow Bisn't allow Cdidn't allow Dwasn't allow

Parking___here.A.doesn't allow Bisn't allow Cdidn't allow Dwasn't allow

A
doesn't allow =isn't allowed
此处禁止停车

B isn't allowed

这里不允许停车。 所以停车是不被允许的
这里用被动语态，根据这一点就只能选 wasn't allowed 或isn't allowed
所以我觉得你的选项有问题 如果isn't allowed，wasn't allowed同时出现，我建议你选 前者