中文谷Ourgovernmenthastriedmanywaysto
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问题详情：
Our government has tried many ways to _________ the smog haze(雾霾) problem. Maybe we’ll
have a clear sky in the near future.
A. come up with B. put away C. set up D. work out
【回答】
D
知识点：动词和动词短语
题型：选择题
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