As the quality of the city’s air continues to give rise to ________, the residents are encouraged to drive cars less often.
A．descriptionsB．compromiseC．concernsD．emergency
C

試題分析：考查名詞：A. descriptions描述，B. compromise妥協(xié)，讓步C. concerns關(guān)心，擔(dān)心，D. emergency緊急情況，句意：因?yàn)檫@個(gè)城市的空氣質(zhì)量繼續(xù)引起關(guān)注，居民被鼓勵(lì)少開車。選C。
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