a number of 造句

Interview a number of candidates
对一些候选人进行面谈
A number of people disagreed.
有几个人不同意。
He has a number of books.
他有一些书。
He made a number of inspections.
他对这个地区进行了多次视察。

随便造吗：
There is a number of students playing on the playground

i have a number of CDs