Our friend， whose father has come to share their home， told me how hard his
father worked his whole life.这里whose是在定语从句中做定语修饰father
定语从句中先行词在从句中作定语（修饰主语，宾语，介词后宾语）的例句，越多越好
Our friend， whose father has come to share their home， told me how hard his
father worked his whole life.这里whose是在定语从句中做定语修饰father