题目内容
18．Not only Jim but also his parents _____ a few places of interest since they came to China．（ ）| A． | Has； visited | B． | Will； visit | C． | Have； visited | D． | Did； visit |
分析 翻译：吉姆和他的父母来到中国后，已经参观了一些名胜古迹．
解答 答案：C．根据时间状语since came to China，在含有since引导的状语从句，从句用的是过去时，故主句用现在完成时，强调过去发生的动作对现在造成的影响．现在完成时的构成：主语+have/has+动词的过去分词，not only，but also 此短语该用就近原则，句子与谓语动词最近的主语his parents保持一致，所以用have，故选C．
点评 本题考查的是现在完成时，表示过去发生或已经完成的某一动作对现在造成的影响或结果．since引导的时间状语从句用的是过去时，主句用现在完成时．
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