小狗看到食物时兴奋地摇着尾巴。

The puppy excitedly ___wags its tail when it sees food.

看到我偷吃零食，妈妈对我摇了摇手指表示警告。

Mom ___wags her finger at me when she catches me sneaking snacks.

小狗看到主人回家时，尾巴欢快地摇来摇去。

The puppy's tail ___wags excitedly when it sees its owner coming home.