A who,whom,whose who作主語(yǔ)：Who keeps the keys?誰(shuí)保管那些鑰匙?（肯定動(dòng)詞） Who took my gun?誰(shuí)拿了我的槍?（肯定動(dòng)詞） Who are these boys?這些男孩是誰(shuí)?（疑問(wèn)動(dòng)詞） who,whom作動(dòng)詞賓語(yǔ)：常用英語(yǔ)：Who did you see?你見(jiàn)到誰(shuí)了?很正式的英語(yǔ)：Whom did the committee appoint?委員會(huì)指定了誰(shuí)?whose作主語(yǔ)或主語(yǔ)的一部分：Whose car broke down?誰(shuí)的車(chē)子發(fā)生了故障?（肯定動(dòng)詞） Whose（books）are these?這些（書(shū)）是誰(shuí)的?（疑問(wèn)動(dòng)詞） whose作動(dòng)詞賓語(yǔ)或主語(yǔ)的一部分：Whose umbrella did you borrow?你借了誰(shuí)的雨傘?B which Which作主語(yǔ)或主語(yǔ)的一部分：Which pigeon arrived first?哪一只鴿子先到達(dá)的?（肯定動(dòng)詞） Which of them is the eldest?他們中誰(shuí)的年齡最大?（肯定動(dòng)詞） which作動(dòng)詞賓語(yǔ)或賓語(yǔ)的一部分：Which hand do you use?你用哪一只手?Which of these dates would you prefer?這幾個(gè)日期你喜歡哪一個(gè)?C what what作主語(yǔ)或主語(yǔ)的一部分：What caused the explosion?是什么引起爆炸的?（肯定動(dòng)詞） What kind of tree is that?那是哪種樹(shù)?（肯定動(dòng)詞） what作動(dòng)詞賓語(yǔ)或賓語(yǔ)的一部分：What paper do you read?你經(jīng)?？词裁磮?bào)紙?What did they eat?他們吃了什么?