...he fact that she broke her leg, she might have passed the exam.变为倒装后的虚拟语气句子:Had it not been for the fact that she broke her leg, she might have passed the exam.去掉if,为什么只把had提前,而not不跟着一起提前呢?为什么不说Had not it been?
以前最基础的都能记住,比如:the key to doing stha promise to do sththe attempt to do sththe approach to doing stha plan to do sth 等等但是如果遇到新单词的话就又有点懵了,不知道是选择哪个。比如遇到一个 incentive,是 incentive to do sth 还是 ince...