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
人气：294 ℃ 时间：2019-09-03 10:29:34
解答
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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