问题
选择题
There are_________ students in my school._________ students in my school is over 5000.
A．a number of, A number of
B．the number of, The number of
C．the number of, A number of
D．a number of, The number of,
答案
答案：D
a number of 表示大量的，后接可数名词复数形式，作为主语时，相当于复数形式，而the number of 表示···的数量，作为主语时相当于三单形式，故选D