摘要： -I don’t know why Tom was absent from yesterday’s meeting. -He must have been sick, ? A. isn’t he B. mustn’t he C. didn’t he D. wasn’t he
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—I don’t know why Tom was absent from yesterday’s meeting.
—He must have been sick, _______？
A.isn’t he B.didn’t he C.wasn’t he D.mustn’t he
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—I don’t know why Tom was absent from yesterday’s meeting.
—He must have been sick, _______？
| A．isn’t he | B．didn’t he | C．wasn’t he | D．mustn’t he |