i tell you --- visiting the great wall.1,about something2,anyting about 3,something about.为什么要用visiting
问题描述：
i tell you --- visiting the great wall.1,about something2,anyting about 3,something about.
为什么要用visiting
答
3
about 是介词+doing
答
我告诉你---伟大wall.1访问，大约something2 ， anyting 3 ，谈谈。
答
something about.......
about后要跟名词，visiting是动名词
答
3,something about.
about介词后面加名词或者ving形式
答
3
about 是介词,介词后面加宾语必须加名词或动名词形式,所以用visiting
答
用3，about是介词，动词用ing