They played games yesterday.改为被动语态怎么改?

They played games yesterday.改为被动语态怎么改? 把该句改为被动语态：they played games and won prizes They play computer games after class改为被动语态 They had lunch at school yesterday.改被动语态 He played sports yesterday afternoon改为一般疑问句怎么改 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, They played basketball yesterday改否定句 改为被动语态：1.Students often play computer games 2.They will have They will show the games on TV.(改为被动语态） 将下列句子改为被动语态.要说一下怎么改, 英语改为被动语态的题,这个题怎么改? Have just finished my homework 改为被动语态怎么改?