作业帮a number of ____(child)often help the old people on weekends
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a number of ____(child)often help the old people on weekends
a number of ____(child)often help the old people on weekends
a number of ____(child)often help the old people on weekends
children
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答案： children
a number of children 很多学生
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children
a number of 的意思是许多
the number of 是。。。。的数量
children, a number是一群的意思，所以这里要用复数。
Look!A number of students ____(be) on the playground.
A number of apples ____ in the box.
the number of,a small number of,a number of.
a number of the number of
a growing number of
a.number.of?用法
a small number of
a number of 造句
a number of同义词
After a number of
a number of
a lager number of
the number of、a number of、large number的区别
a number of ____(child)often help the old people on weekends
The tree is generally believed ____(claim)a number of victims.
A number of students go to the USA to study ____(far)
A number of doctors and nurses were found ____(rescue)the injured.
a number of people 谓语动词用什么?a lots of fish =____(many or much ) fish