题目内容：

are students in our grade.
There are students in our grade.
A.hundreds of
B.three hundreds of
C.three hundreds
选那个?

优质解答

选A.hundreds of表示一个具体数字时,hundred,thousand,million一律不用复数；在表示一个不确定数字时则用复数.例如：例子：Our country has a population of 1,300 million people.There are three thousand student...