问题补充：
the students in our school go to college in their teens.
A. A good many
B. A great many of
C. A great deal of
D. A lot of
答案：
A. A good many
(答案→)B. A great many of
C. A great deal of
D. A lot of
解析：考查形容词用法。A great many修饰可数名词复数形式；a great deal of修饰不可数名词；a lot of既可以修饰可数名词复数也可以修饰不可数名词。A great many of项的of后面一定要接the表示“…范围之内的很多…”句意：我们学校中的很多学生在10几岁的时候就上大学了。故B正确。
