这句话怎么改为被动语态?

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, “被动语态” “主动语态” “动态助词” “语气助词” “这句话是被动语态” 以上怎么翻译成英语? 这两个英语句子改为被动语态! 初中英语改为被动语态. 改为被动语态!急用... 改为被动语态,  改为被动语态 能改几题是几题 make 的被动语态He's films always make me laugh.这句话的被动语态怎么变? He should cut his hair.这句话是什么时态?怎样改为被动语态? Do people use knives to cut things ? 这句话改为被动语态 这句话是一般将来时的被动语态? 这句话是被动语态吗