Use the words given to make a conditional sentence - type 1. You can add some words and make any necessary changes.

 1. If/ burn rubbish,/ produce harmful smoke.

2. If/ reuse bottles,/ save a lot of money.

3. If/ use recycled pa per,/ save/ trees.

4. If/plant trees in the schoolyard,/ school/ greener place.

5. If/ rubbish bin in every class,/ classroom/ cleaner.