问题
选择题
There're students in Grade7.
A．three hundreds
B．three hundreds of
C．three hundreds'
D．hundreds of
答案
答案：D
此题考查名词的量。确切数量常用数词+hundred/thousand/million/billion+名词的复数形式；不确切数量常用hundreds/thousands/millions/billions + of+名词的复数形式.