is this factory___we visited last year is this the factory___we visited last year a where b in which c the one d at which 这两个有什么区别啊 ——————is mentioned above ,the number of the students in senior high school is increasing

Is this factory___we visited last year?A.in which B.around that C.whom D.the one is this factory___we visited last year答案是the one怎么知道他缺少表语?表语是什么?后面加什么?不要长篇大论 is this factory___we visited last year is this the factory___we visited last year a where b in which c the one d at which 这两个有什么区别啊 ——————is mentioned above ,the number of the students in senior high school is increasing 一道定语从句问题1、Is this factory___we visited last week?2、Is this the factory___we visited last week?A.that B.whose C.who D.the one且为什么第一句选the one做表语,第二句the factory是作宾语还有为什么加个the就变成 ★★★when与where,which与when,填空+解释★★★填空1.I'll never forget the day ___ I first went to school.2.I'll never forget the day____we spent in Beijing.3.Is this factory___we visitedlast week?4.This is office ___Lincoln once worked i This is is this This is THIS IS this is this is this is 比如 this is fly Is this a book? Yes,this is. This is life .This is live! This is Mary.意思不变：This is （ )( ) This Is Me,This Is You 歌词 This is a man提问( ) is this? this is kangkang.为什么用this is