Iheardthatsomepatientswhohadundergonelasereyesurgeryex...

问题详情：

 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

【回答】

C

知识点：疑问句 反义疑问句

题型：选择题