Краткое пояснение: Сопоставляем устойчивые выражения со словами.
- He is always as happy as a clown.
- He is as wise as a wolf.
- He is as slow as a turtle.
- He is as big as a hippo.
- He is as sly as a fox.
- He is as free as a bird.
Ответ: a clown, a wolf, a turtle, a hippo, a fox, a bird