When I visited them last night ,they __ (chat) by the fire.

When I visited them last night ,they __ (chat) by the fire. Jack and his father were playing chess when I visited them at this time yesterday.改为被动句 I am cleaning the room.The room ____ _____ _____.I am cleaning the room.The room ____ _____ _____. He isn't washing the car.__________________.When they painting the wall when you visited them? ____ the wall ___ ___ when you visited them?You ough The workers______(produce) shoes when I visited the pactory When I was six years old I visited the Great Wall ,为什么when后面加过去式 英语翻译I have over 3000 cards .I keep then inphoto pages in binders .After first ,i only had a few cards ,i bought them when i traveled to other cities ,i could remember the cities that i visited when i saw the cards ,i thought they could bring this was the place__last year.A.which I visited B.where I visited搞不清什么时候用which什么时候用when i visited them once every six months的意思,还有另一种表达方式,用序数词~ we visited the factory ---I have visited all my lost?A where B which c when d that This was the place _ last year.A.which I visited B.where I visited C.when I visited D.in which I visited为什么选A不选B 先行词是place地点应该用where呀 this is the place_last year选项which i visited where i visited when i visited in which i visited 详细的解释一下先行词的成分作用,where等于in which 排除BD,我就想知道先行词的词性, Tom's mother said that he was out when I visited him同义句Tom's mother said that he wasn't ____ ____ when I visited him I ___ ___ ___（照了许多照片）when I visited Qingdao last year. I ofen visited the Great Wall 什么 I was staying in BengjingA whileB when求过程 Have you ever visited the Water Cube?Yes.When I served as a volunteerin Beijing,I it twiceA.have visited B.visited C.had visited D.had been visiting为什么不选C When I walk past,I hear them shour .(改错) I started collecting them when I was6 years I was cooking when uncle wang visited my home 为什么连词不能用while?