改为被动语态 They have read the book three times.we should allow six-year-olds to choose their own clothes.

They have read these comic books.(改为被动语态） They have repaired many chairs today.怎么改为被动语态 They have pained their new house 改为被动语态 They have collected stamps since 1986.改为被动语态 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） Have they posted the letter yet?改为被动语Have they posted the letter yet?改为被动语态 They cieaned the floor.改为被动语态 They smashed the window.改为被动语态 改成被动语态：They have offered me. They have to build another bridge over the river.改为被动语态 Another bridge------to be ---- They have sold out the light green dresses.改为被动语态 Have they posted the letter yet?改为被动语态如题 They have found a way to make waste water clean.如何让改为被动语态 They have found the way to Magic Parade.怎么改为被动语态? they have recently opened a new college（改为被动语态） they have set up a hope primary school there改为被动语态 They have all been put to shame by a boy这句话说是被动语态,改为主动语态怎么改, We have planted many trees.改为被动语态Many trees ( )( )( )by us.改为被动语态一空一词