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题目
can not have visited could have visited must have visited should not have visited
can not have visited
could have visited
must have visited
should not have visited

提问时间:2020-10-30

答案
你所问的问题涉及知识是【情态动词+have+过去分词】.can not have visited (过去)不可能已经做过某事could have visited (过去)本来能够做某事(却没有做)must have visited (过去)一定/准是做过某事should not...
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