问题
选择题
We are tired of doing ________ homework every day; most of _______ is of no use but of
mechanical drill.
A．a lot of; it
B．the number of; which
C．a number of; it
D．a great deal of; which
答案
答案：A
本题考查修饰不可数名词的形容词短语，homework是不可数名词所以排除BC；句中分号说明第二句不是定语从句，用it 代替homework。