1. seventeen billion

2. two million 

3. three million

4. landfill

5. recycle your rubbish

Fragmenty tekstu wskazujące na prawidłowe odpowiedzi:

1. 'We use about seventeen billion metal cans in the world each year'

2. 'That's about two million metal cans each hour.'

3. We use about three million plastic bottles each hour.'

4. We put a lot of this rubbish in ugly landfills.'

5. What's the answer to the problem? Recycle your rubbish!'