I have no idea or not he has finished the work.A. if B. that C. whether D. which

发布时间:2020-08-16 07:39:56

I have no idea      or not he has finished the work.
A. if
B. that
C. whether
D. which

网友回答

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