【题目】George would certainly have attended the meetings, ________.
A. has he not had a flat tyre
B. if he hadn’t a flat tyre
C. had he not had a flat tyre
D. if he hasn’t had a flat tyre
在线课程【答案】C
【解析】
试题分析：句意：要不是乔治的车胎坏了，他肯定会参加这个会议。表示对过去情况的假设，主句动词形式为would(should, could, might)+have+过去分词，条件句为过去完成式，if可以省略但要把had提前主语前面，故选C。