Complete the sentences using the correct words.

1) Many ... of animals can become ... in the near future.

2) Nowadays many scientists say that some chemicals can ... human life.

3) Birds are animals. Are ... also animals?

4) Tourists photographed the ... in Trafalgar Square.

5) Nelly's pig was a funny ... , with short legs, small ears, and not much hair on its skin.

6) Boxes are generally made of ... .

7) Lakes and ponds are natural ... for frogs. What are usual ... for snakes?

8) How many stories does the book ... ?

9) The crocodile is not a ... , it's a reptile.

10) Don't worry, I'll ... your little rabbit.