1、 是昨天不在,因此用过去时.
2、 对于be sick 的提问, 用be动词, 因此 wasn't he? 正确
---I do not know why Tom was absent from yesterday meeting.
---I do not know why Tom was absent from yesterday meeting.
---He must been sick ,( )
A.is not he B.was not he C.did not he D.must not he
选第二个,为什么
---He must been sick ,( )
A.is not he B.was not he C.did not he D.must not he
选第二个,为什么
英语人气：229 ℃时间：2019-10-24 02:53:00
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