Obama and his officials are trying to the serious problems from the financial crisis.A. e

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A. end up
B. cut off
(答案→)C. cope with
D. step up
解析：考查动词词组。句意：奥巴马和他的官员们正努力解决由经济危机所引发的严重问题。end up结束；cut off切断； cope with处理；step up走上前，加快。