the number of students 后 应该+are还是is the number of ...的主语是复数还是单数啊?那么 a number of 和 an amount of 还有 amounts of

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thenumberofstudents后应该+are还是isthenumberof...的主语是复数还是单数啊?那么anumberof和anamountof还有amountsofthenumberof

the number of students 后 应该+are还是is the number of ...的主语是复数还是单数啊?那么 a number of 和 an amount of 还有 amounts of
the number of students 后 应该+are还是is
the number of ...的主语是复数还是单数啊?
那么 a number of 和 an amount of 还有 amounts of

the number of students 后 应该+are还是is the number of ...的主语是复数还是单数啊?那么 a number of 和 an amount of 还有 amounts of
is
is
is are
is are

单数
复数
单数和复数
同上

is

the number +is

the number of +单数
a number of =many +复数
an amount of =amounts of