2. 外语
  3. He is not in the office. He must have gone to have classes, ______?

He is not in the office. He must have gone to have classes, ______?

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问题 He is not in the office. He must have gone to have classes, ______?
选项 A、didn’t he
B、doesn’t he
C、mustn’t he
D、hasn’t he
答案D
解析 反意疑问句题。情态动词must后接动词完成时形式，表示对过去或已完成动作的推测，在本句中说话人的推断是he has gone to have classes，这种情况下，应对所推断的情况进行反意疑问，故答案为D。
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