But how clean is the air people breathe? If they breathe (2) ___________ air, they will have breathing problems.

It’s very___________ to swim there. The water is healthy polluted.

You can watch Harry Potter on TV_____________you can read it.

Choose the correct answer A, B, C or D to complete the passage. 

People need to breathe. If they don’t breathe, they (1) ____________ die. But how clean is the air people breathe? If they breathe (2) ___________ air, they will have breathing problems. Plants and animals need (3) __________ air too. A lot of the things in our lives create harmful gases and(4) _________the air dirty, like cars, motorbikes, and factories. Dirty air is called polluted air. Air pollution can also make our Earth warmer.

_____________walk in the rain. It’s not good for your health.

Rewrite these sentences as directed in the brackets. 

I had a bad cold, so I didn’t go to school yesterday. (Rewrite this sentence with “because”)

He likes playing soccer, ______________he can’t play it.