Attention: Read the text below and decide which answer (A, B, C or D) best fits each gap.
Saving energy: it starts at home
We already know the fastest, ........ expensive way to slow climate change: use less energy. With a little effort, and not ........ money, most of us could reduce our energy diets by 25 percent or more − .......... the Earth a favor while also helping our pocketbooks. So what’s holding us back?
Scientists have reported recently that the world is heating up even faster ........ predicted only a few years ........ , and that the consequences could be severe if we don’t ........ reducing emission of carbon dioxide and other greenhouse gases that are trapping heat in our atmosphere. But what can we ......... about it as individuals? Will our efforts really ........... any difference?
(Extracted from the National Geographic Magazine, March 2009)