a dark night they took the sick boy to the hospital. And after an hour’s curing the boy

问题补充：

a dark night, they took the sick boy to the hospital. And after an hour’s curing, the boy was out of danger very soon.

A. With

B. At

C. On

D. In

答案：

A. With

B. At

(答案→)C. On

D. In

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