he is beaten by him at once 和 he is beaten at once by him 两者都可以,只是可能侧重的方面不一样.
Mary was asked to play piano for us by us.主动改被动一般是变换主语和宾语的位置,谓语用动词的被动形式 be加动词的ed形式.
he is beaten by him at once 和 he is beaten at once by him 两者都可以,只是可能侧重的方面不一样.
Mary was asked to play piano for us by us.主动改被动一般是变换主语和宾语的位置,谓语用动词的被动形式 be加动词的ed形式.