题目内容
【题目】Cities are ____ places to live than before because they are dirtier and more crowded.
A. more pleasant B. less pleasant C. pleasant D. the most pleasant
【答案】B
【解析】句意：城市是比以前住的不太愉快的地方，因为他们更脏更拥挤。根据than before可知用比较级；又因they are dirtier and more crowded. 他们更脏更拥挤，可知不愉快；故选B
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