the beginning of the meeting, we heard a report by Mr Li.A. ByB. InC. AtD. On

发布时间：2020-08-14 23:56:30

     the beginning of the meeting, we heard a report by Mr Li.
A. By
B. In
C. At
D. On

网友回答

A. By
B. In
(答案→)C. At
D. On
解析： at the beginning of 在…之初。
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