He used to joined a service club to help people, so he is kind to people and he likes to listen to people’s heart.
這個句子只有一個地方錯,你的朋友是一個kind and likes to help people是對的,因為妳的朋友一向是這樣,如果用過去式的話就錯了,這個句子用現代簡單是正確的,用過去式的話除非你同學變得不一樣,不然就是他已經往生