UNIT 9: PROTECTING THE ENVIRONMENT 05

The builders have ____ that everything will be ready on time.

• promised

• promise

• promises

• promising

The doctor ____ him to take more exercise.

• told

• tell

• have told

• are telling

The last time I saw Linda, she looked very relaxed. She explained she'd been on holiday the ____ week.

• ago

• following

• next

• previous

Fossil fuels which are non-renewable pollute the air and cause air ____.

• pollution

• solution

• contaminate

• consumption

Recycling provides a method of reducing the amount of waste materials that gets to the landfills - thus ____ it less probable for environmental pollution to take place.

• making

• doing

• causing 

• trying

I

• inappropriately 

• disappointingly

• eco-friendly 

• favourably

Trees not only bring nature to urban areas, but they also help clean the air by absorbing pollutants, ____ oxygen, ____ water, and grow food.

• to provide - to save 

• to provide - save

• providing - saving

• provide - save

Air pollution is such a serious ____ that it has been a direct factor in the ____ of millions of people each year.

• threat - death 

• threat - deaths

• threaten - death

• threaten - deaths

Sometimes it's better not to buy something new, and buy it ____ instead.

• used   

• usable

• use  

• useful

He asked the children ____ the river.

• don't pollute 

• if they don't pollute

• not to pollute

• not polluting