60、That was a difficult question, but Mary still _ _ _ _ _ _ _ to work it out.A.did B.failed C.kept D.managed - 查题网

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高等继续教育 / 统考英语词汇与语法

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60、That was a difficult question, but Mary still _ _ _ _ _ _ _ to work it out.
A.did
B.failed
C.kept
D.managed

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统考英语词汇与语法

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