题目内容
【题目】He would certainly have got there on time ______.
A. had he not had a flat tire
B. if he didn't get a flat tire
C. if the flat tire hadn't happened
D. had the tire hadn't flattened itself
【答案】A
【解析】在if虚拟条件句中含有had，were，should时，if省略时把had，were，should放在句首构成倒装句。
练习册系列答案
相关题目
