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The doctors worked still for finding the best way to cure H1N1 flu．A.hardB.harde

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The doctors worked still for finding the best way to cure H1N1 flu．A.hardB.harde

The doctors worked still _________ for finding the best way to cure H1N1 flu．

A.hard

B.harder

C.hardness

D.hardly

试题答案

B

标签：findingforbestthedoctors

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