B Fill the correct word
1. People live longer today.....than.... they used to.
2. Don't forget to do...on..... your coat. It's very cold outside.
3. Everyone should help protect our natural...environment/habitat....
4. Fossil...fuels...., such as oil, are not renawable sources of energy.
5. I was so nervous. I had....butterflies..... in my stomach.
6. The rainforest is home rare....... of birds - проверь это
7. We'll go to the beach..unless... it rains.