The president must have received the result of medical research by the time the disease spread widel...
2022-06-10 05:16:02 119次 2020届江苏省扬州市高三下学期第三次模拟考试英语试卷 单项填空 反馈错误 加入收藏 正确率 : 100%
题目内容：
The president must have received the result of medical research by the time the disease spread widely, _______?
A.hasn’t he B.mustn’t he C.hadn’t he D.didn’t he
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