all的主谓一致
1、代词all表示可数的人或物时，其后的动词用复数形式。
All were hungry and desperate(渴望)for food.
All who have seen the film love it.
2、代词all表示不可数的名词时，其后的动词用单数。
All is going well.(一切顺利。)
All is quiet in the middle of the night.
3、形容词all+可数名词时，其后的动词用复数形式。
All roads lead to Rome.(条条道路通罗马。)
All things are difficult when we begin to do them.
4、形容词all+不可数名词时，其后的动词用单数形式。
All work and no play makes Jack a dull boy.
Not all food is good to eat.6.带none的词组作主语时，其后面的动词单数或复数形式都可用。
None of you have / has had my experience.
None of the hotels are / is ready for guests yet.
NounPronoun Agreement
NounPossessive Case Agreement