我们在森林里看到了一只正在吃草的野生动物。

We saw a ___wild-animal grazing in the forest.

那只被关在笼子里的狼表现得像头野兽，不停地咆哮和撞击栏杆。

The wolf in the cage behaved like a ___wild animal, growling and ramming the bars constantly.

派对结束后，那群年轻人像野兽一样在街上大喊大叫。

After the party, those young people were shouting in the street like ___wild animals.