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.hard
B.harder
C.hardness
D.hardly
试题答案
B

The doctors worked still _________ for finding the best way to cure H1N1 flu.
A.hard
B.harder
C.hardness
D.hardly
B