All that can be done .A. has been doneB. have been doneC. have doneD. has done

发布时间：2020-08-17 12:21:42

All that can be done     .
A. has been done
B. have been done
C. have done
D. has done

网友回答

(答案→)A. has been done
B. have been done
C. have done
D. has done
解析：All作主语，指的是事情或抽象概念时，常用单数，谓语动词也用单数。
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