Did they build a house here a year ago?帮我改成被动的,

did they build a bridge here a year ago.改为被动语态 改被动.Did they build a bridge here a year ago. Did they build a house here a year ago?帮我改成被动的, 句型转换:Did they build a bridge here a year ago--?a bridge here by them a year ago When did they build the house?改被动 英语 主动改为被动、主动改为被动1.Did they build a bridge here two years ago?_______ a bridge ______ they by them two years ago? build sth up还是build oneself upswimming is a good way to build -----(they) up. 句型转换:Did they build a bridge here a year ago--? a bridge ? here by them a year bridge青帮帮我 did they build a bridge here a year ago?改成被动语态he made the farmers wok for a long time . They are going to build a library改为否定句 The___ ___going to build a library Hou did you do last weedend?是什么意思? They are going to build a b( )over the river a new house they wanted to build连词成句 I want to buy a pair of trousers.Hou much () they They have painted the door already.(改为被动语态)When did they build他和house?（改为被动语态） 主动转换被动句1 they make machines in that factory2 they saw monkeys jump off the trees3 It was reported that the murderer had been arrested4 they did't show the photos to me 5 Did they build a bridge here a year ago? ____a new library ____in your school last year?A.Is;built B.Does;build C.Was;built D.Did;build Why did people build this?