He says all tried their best and that all that can be done been done.A. has, hasB. have,

发布时间：2020-08-16 11:22:07


He says all      tried their best and that all that can be done      been done.
A. has, has
B. have, have
C. have, has
D. has, have

网友回答

A. has, has
B. have, have
(答案→)C. have, has
D. has, have
解析：all 做主语时，表示物谓语用单数，表示人谓语用复数，
“他说所有的人都尽力了，所有能做的事都做了”
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