Such a hard problem that I gave it up .
A. was it ; eventually
B. It was ; suddenly
C. was it ; unfortunately
D. It was ; eventually
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(答案→)A. was it ; eventually
B. It was ; suddenly
C. was it ; unfortunately
D. It was ; eventually
解析：第一空考查倒装，such…that …句型such位于句首要用部分倒装；第二空词义辨析eventually 结果，suddenly突然，unfortunately 不幸。句意：这个问题如此难结果我放弃了。