Mary ________ theWashington Science Center. She is disappointed that her father doesn’t allowher to go there with her class.A.oftenesB.was goingtoC.has nevervisitedD.had neverbeen to
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C解析从后句“她很失望她爸爸不允许她和同学去那里”可以判断，她从来没有去过华盛顿。排除AB。事情发生是在现在，故用现在时，排除D。