残疾人励志小视频:高中英语题 说下原因

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All that can be done ____
A have been done B has been done

选B
All that can be done =what can be done
这是名词性主语从句谓语应该用单数
所以我的选择是B

选B
把all当成一个整体,也就成了单数,记得那时候老师是这么对我们讲的。

B

All that can be done ____ B has been done
All that can be done 是主语从句,用单数的谓语。

B