All my today’s homework （）now.Can I go out and play football,Mom 是has been finished还是have been finished,说明为什么选have或has.
问题描述：
All my today’s homework （）now.Can I go out and play football,Mom
是has been finished还是have been finished,说明为什么选have或has.
答
have been finished 因为不是三单 所以不用has
答
选has，因为All my today’s homework是一整体，不可数名词，故选has
答
has been finished
homework不可以数名词,就要三单的形式了,have变has
如不明白请追问!
答
大意：我已经所以的功课都已经完成了，妈妈，我可以出去踢足球了吗？
这个句型是强调已经完成，所以是现在完成时，主语是homework这是一个不可数名词，所以填写
has been finished