4 Complete the sentences with words from 3.

Решение:

1. Can you follow this piece of wood? How long is it?
2. Most mammals give food to someone or something their children milk from their bodies.
3. It is illegal to buy and sell elephant important.
4. Bees play a find out the size of something role in our ecosystem.
5. Some sea animals have a hard the long white teeth on both sides of an elephant's nose to protect them.
6. The police sometimes use dogs to the hard, protective cover of a sea animal people.

Ответ: 1. follow, 2. give food to someone or something, 3. important, 4. find out the size of something, 5. the long white teeth on both sides of an elephant's nose, 6. the hard, protective cover of a sea animal.