-John has put forward most challenging question for us to answer. -Yes, it reall
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—John has put forward _______ most challenging question for us to answer.
—Yes, it really is. I have never heard _______ harder one.
A. the; 不填 B. 不填; the
C. the; the D. a; a
试题答案
D
第一空后的most不是构成最高级，而是表示“很”、“十分”，故其前用a；第二空也填a，该句为 I have never heard a harder one than this one 的省略。