摘要： George would certainly have attended the proceedings . A. if he didn’t get a flat tire B. if the flat tire hadn’t happened C. had he not had a flat tire D. had the tire not flattened itself 解析:表示对过去情况的假设.主句动词形式为would+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.的表达不符合英语表达习惯.所以(C)是正确答案.
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George would certainly have attended the proceedings________.?
A.if he didn’t get a flat tire
B.if the flat tire hadn’t happened ?
C.had he not had a flat tire
D.had the tire not flattened itself
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