如果你在医生那里表现乖，我就给你买冰淇淋。

If you are a ___good boy at the doctor's, I will buy you an ice cream.

他承诺做个乖孩子，每天打扫自己的房间。

He promised to be a ___good child and clean his room every day.

我们的猫很乖，从不抓家具。

Our cat is very ___good and never scratches the furniture.