Read the sentences and decide which preposition(s) you need to add to make the sentences correct. Write the complete sentences in your notebook.

1. In my family, we try to sort all the rubbish and cut down plastic bags we use. ON /OUT/ UP
2. I always remember to turn the lights and never throw old batteries. AWAY/ON/OFF
3. All supermarkets have given supplying people with plastic carrier bags for free. OFF/UP/ON
4. We need to look the environment and make sure we don't run of natural resources. OUT/ AFTER/FOR