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anumberof作主语,谓语动词用什么形式thenumberof作主语时,谓语动词之后的部分用什么形式

题目详情
a number of作主语,谓语动词用什么形式
the number of作主语时,谓语动词之后的部分用什么形式
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答案和解析
a number of 是许多的意思,相当于a lot of.谓语动词用复数.
如:A number of people were injured in the terrible earthquake.
注意若主语是“ the number of+ 名词”时,谓语动词则要用单数形式.例如:
The number of the people invited was fifty, but a number of them were absent for different reasons.