郭岩的回答：

1.They behaved badly/ improperly towards the guests. 2.He behaves like a gentleman . 3.Behave yourself during my absence from home.

我的世界只有你的回答：

你好！ 1.He behaved badly to the guests. 2.His behaviour looks like a gentleman . 3.You should behave well when I am away . 打字不易，采纳哦！