诗涵百草兔
His father has been died since three years before.His father passed away three years ago.His father was died three years ago.
鼠宝宝zhz
His father was dead three years agoHis father has dead for three yearsIt is three years since his father was dead
奔跑的流沙包
The sudden death of his father makes him sad. His father's sudden death makes him sad.
