公益围挡广告:I have seen a bus yesterday.的被动语态

I have seen a bus yesterday.的被动语态 请问 This is the most beautiful place （) I have ever seen A where BwhichC that 请问 This is the most beautiful place （) I have ever seen A where BwhichC that i have seen it 什么意思? A : Have you seen the temperature today? i am sure tom is at home because i have seen him( )upstairs. A.run B. running 为什么 i have seen the film already 和i have already seen the film的区别 1.I have never seen such a strange funny man______he.A.as B.like C.than D.but We each have a new bus 能否说I seen a boy?