题目内容：

There are about ___students in this school. A.fiv
There are about ___students in this school.
A.five thousand B.five thousands
C.five thousands of Dthousand of

优质解答

A
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追问：

?

追答：

具体几百，几千， 不能加s, 所以B,C不对 D 要是thousands of... 因为前面没有数词