should have done 表示条件?should the soviets have

问题描述:

should have done 表示条件?should the soviets have
should have done 表示条件?should the soviets have attacked china,.would have done .这个句子前面部分是条件吗?

前面部分是条件状语,这是虚拟语气在条件句中的运用,这句省去了连词if欢迎追问谢谢夸奖