Come upstairs and see it.这里为什么不能把and替换为to?

come upstairs能不能换为go upstairs句子是这样旳Why not come upstairs and have a look come upstairs and see it 与come upstairs to see it 那句对 come upstairs and see me为什么不能用come upstairs to see it Come upstairs to finish your homework.为什么要改Come upstairs and finish your homework. come upstairs and see it的反意疑问句 come upstairs and see it 为什么用and 不用to可是书上说不能用 come upstairs to see it ... come upstairs and see it 为什么不能用`come downstairs and see it Come upstairs and see it把And换成To讲得通吗 Come upstairs and see it.这里为什么不能把and替换为to? come upstairs and see it为什么and不能换成tocome upstairs and see it这句话中的and为什么不能换成to请详细说明 为什么come upstairs and see it 在英语中不能用come upstairs to see it.求详解.讲讲语法吧, 用所给词的适当形式组成句子 it come and see upstairs Is there ( )here Yes I'm upstairs Please come and help meanybody 还是somebody 连词成句 hat,are,my,and,hat,your,the,colour,same.upstairs,come,and,it,see 快啊,有分哦 it come and see upstairs用所给词的适当形式组成句子（是疑问句）快! 为什么在英文中,不能用Come upstairs to see it..而是要用 Come upstairs and see it不可以用to的!参见P26没人能回答吗?看来只好关闭问题了... come upstairs and see it 到楼上看看...不是and 后面要有主谓宾的吗 为什么and后面没有主语了 省略了还是...这边的upstairs 是做副词还是做名词? come upstairs to see it 为什么不对?新概念第一册26页说英文中不能用come upstairs to see it ”,只能用come upstairs and see it.我想知道为什么,在网上查了一下,也有很多人问同样的问题,但回答者都是不