I heard that some patients who had undergone laser eye surgery experienced sudden losses

发布时间：2020-08-16 21:59:22

I heard that some patients who had undergone laser eye surgery experienced sudden losses of vision,     ?
A. didn’t I
B. hadn’t they
C. didn’t they
D. isn’t it

网友回答

A. didn’t I
B. hadn’t they
(答案→)C. didn’t they
D. isn’t it
解析：考查反义疑问句。本题的I heard是插入语，后面句子的主语是some patients，是复数形式；谓语动词是experienced，是过去式；所以答案为C
以上问题属网友观点，不代表本站立场，仅供参考！