All can be done has been done.A. whatB. thatC. whichD. the one

发布时间：2020-08-15 01:59:13

All      can be done has been done.
A. what
B. that
C. which
D. the one

网友回答

A. what
(答案→)B. that
C. which
D. the one
解析：这里要填一个关系代词来引起定语从句…can be done,由于先行词是all,所以选 that.
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