— John has put forward ______ most challenging question for us to answer.
— Yes, it really is. I have never heard ______ harder one.
A.a; the | B.the; the |
C.a; a | D.the; a |
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推荐套卷
— John has put forward ______ most challenging question for us to answer.
— Yes, it really is. I have never heard ______ harder one.
A.a; the | B.the; the |
C.a; a | D.the; a |