题目内容
7．Beijing is one of the ______ in the world today．（ ）| A． | busiest city | B． | busiest cities | C． | busy city | D． | busy cities |
分析 北京是当今世界上最繁忙的城市之一．
解答 答案：B 考查形容词的比较级和最高级．根据题干，one of the结构中要用最高级，名词要用复数形式，busy的最高级是busiest，city的复数是cities，故选择B．
点评 考查形容词的比较级和最高级．根据句子结构，分析句中的形容词的结构及在本句中的用法是解决此类题的关键．
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