情态动词 与 could have doneI saw jack in the market this wednesday.You ____him；he is still studying in the USA,答案用的是could not have seen 也好理解,但是选项中也有 can not see 感觉这块没学好o(╯□╰)o.不知道为什么can not see 是错的.
问题描述：
情态动词 与 could have done
I saw jack in the market this wednesday.
You ____him；he is still studying in the USA,
答案用的是could not have seen 也好理解,但是选项中也有 can not see
感觉这块没学好o(╯□╰)o.不知道为什么can not see 是错的.
答
你说can not see不就是说你不能看见他?这是一般时,也就是在陈述一个事实,那就是说即使这个人在你眼前你也不能看见他,因为 you can not see him
情态动词+ have +done sth 就是表示对过去某事的一种判断嘛