英语宾语从句,主语和宾语怎么变?要有例句.

一主,二宾,三不变第一人称看主语,“May I use your knife?” He asked me。 →He asked me if he might use my knife。第二人称看宾语,“Do you know her telephone number?” He asked me。　　→He asked me if I know her telephone number。第三人称不变Do you know? Where does he live? →Do you know where he lives?