went across to the window and lookedout ( ) the night A on B at C into D for

She went across to the window.其中across不已经是介词为什么后面还要加to?或者She went to the window不也可以吗? He went on to win awards in competitions across the world. It took us two hours to walk ()the forest,and then I went（）the street to the small hotel.a.through,across b.across,through c.across,across d.through,through One day,two friends ( )the forest.(went across/went throught) I (w )across the road very carefully went across to the window and lookedout ( ) the night A on B at C into D for i went to see the beautiful w yesterday填什么空是字母w开始 They went _____ the forest from west to east.A.across B.cross C.through D.in We went right round to the west coast by sea instead of driving across continent.A.the； the B./ ； the C.the；/ D./ ； / They went to Shanghai to visit the w什么 Expo in 2010 The bus stop is across from the school.(对 across from the school提问)Mike went to school by bike this morning.(改为同义句）Mike（ ）（ ）（ ）to school this morning. he went across the river如果去掉went这个句子还对吗? If you're h______ ,have some bread.Wait for your t_______ to see the doctor.He went across the sIf you're h______ ,have some bread.Wait for your t_______ to see the doctor.He went across the street when the traffic l______ were green.The coat is made They went ___ the forest from west to east.A.across B.cross C.through D.in请回答时说明理由 Yesterday I lost my key to the door,so I went into my house____the windowA.across B.cross C.through D.around I saw some students _____ across the street when I went home after work.A.to walk B.walkC.walked D.walks并说明为什么! 定语从句 yesterday i came across a few friends with定语从句 yesterday i came across a few friends with whom i went to the supermarket.为什么要用whom 为什么之前要加一个with呢? Yesterday I came across a few firend with whom I went to the supermarket.Yesterday I came across a few firend with whom I went to the supermarket.请问这个句子的从句是什么,请帮忙详细地分析下这个句子的结构.