A:hi B:hi C:hi D:hi ABCD:BYEBYE-- the end. 开个玩笑 你可以在四个人内交叉使用一些句子,如: where are you from i m from xxx i really like that place because... or what did you do today i went to dance with xx it s wonderful. i like dancing too. what about you. or what kinds of food do you like? I like Chinese/dumplin. or which sports is your favorite? basketball/tennis why because what about you? etc etc. so depends on you