_____ for you help, we might have got lost in the forest
A.Had it notB.Had it not beenC.If it were notD.If we had not been选哪个?为什么?
参考答案:B,虚拟语气,用过去完成时。表原因,had提前。
A.Had it notB.Had it not beenC.If it were notD.If we had not been选哪个?为什么?
参考答案:B,虚拟语气,用过去完成时。表原因,had提前。