He is so busy with the research he has no time left for any other activity.A. whichB. that

发布时间：2020-08-17 01:36:22

He is so busy with the research      he has no time left for any other    activity.
A. which
B. that
C. why
D. because

网友回答

A. which
(答案→)B. that
C. why
D. because
解析：考查so…that…句型：that结果状语从句，句意：他如此忙于研究以至于没时间参加任何活动。选B。
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