选B would rather 后面跟的是宾语从句,所以宾语从句的否定应该是don't 或didn't 所以A C 不对
而would rather 后面要用到虚拟语气,与现在或将来相反要用 would rather that +过去式
与过去相反用过去完成式,所以此处只能选B