问题
选择题
(2013·泰安一中月考)—John has put forward ________ most challenging question for us to answer.
—Yes，it really is.I have never heard ________ harder one.
A．the；/
B．/；the
C．the；the
D．a；a
答案
答案：D
第一空most是副词表示“很，十分”；第二空填a表示泛指，该句为I have never heard a harder one than this one的省略。