If there is emergency, they have to travel three hours to get to nearest hospital for he

发布时间：2020-08-16 10:21:42


If there is      emergency, they have to travel three hours to get to       nearest hospital for help.
A. the; /
B. an; the
C. /; the
D. an; a

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A. the; /
(答案→)B. an; the
C. /; the
D. an; a
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