谓语动词用单复数皆可 none
但当不可数名词前有表示数量的复数名词时，谓语动词用复数形式。
This is a collective noun. Though it appears in the singular form, it takes a plural predicate verb.
当它指代一组成员的每个单个个体时，谓语动词用复数，如在我的家里人总是互相争斗。
It takes a plural verb when it refers to the members of the group considered as individuals, as in My family are always fighting among themselves.
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