题目内容

The number of the people who own cars ______since 1990.
A．is increasedB．are increased
C．have been increasingD．has been increasing
D

试题分析：考查主谓一致和时态；本题的主语是the number of…指…的数量。定语从句who own cars修饰the people。本句的主语是the number of…指…的数量；该短语做主语时，谓语动词用单数。根据since说明本句使用完成时。句意：自从1990以来拥有汽车的人的数量一直都在增加。故D正确。
点评：本题考查了number两个短语。The number of…做主语，谓语动词用单数；a number of做主语,谓语动词用复数形式。
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