21．The doctor couldn’t answer the question the patient could survive that night．A. ifB. t

发布时间：2020-08-16 07:23:03


21．The doctor couldn’t answer the question      the patient could survive that night．
A. if
B. that
C. whether
D. What

网友回答

A. if
B. that
(答案→)C. whether
D. What
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