问题补充:
79. There are only five minutes left before the train leaves. You should run .
A. fast as possible as you can
B. as quickly as you can
C. as fast as possible
D. possible as fast as you can
答案:
A. fast as possible as you can
B. as quickly as you can
(答案→)C. as fast as possible
D. possible as fast as you can
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