_____________the air is cleaner; people will have less breathing problems.

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”)

We make the air dirty because we use the car all the time. (Rewrite this sentence with “If”)

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

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.

You can watch Harry Potter on TV_____________you can read it.

most/ London/ tea/ is/ popular/ the/ drink/ in. (Rearrange the words to make a sentence)

How many teams do team sports require?

What will you do to protect environment, if it goes on polluted? (Answer the question)

Why do two separate teams compete against each other?

Find the word which has a different sound in the underlined part:

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