Read the following leaflet and mark the letter A, B, C, or D to indicate the correct option that best fits each of the numbered blanks from 7 to 12.

Here are some ways to help reduce global warming. Which of these do you regularly do?
- Don't use private cars. Your willingness ___(1)___ or cycle to nearby places can help reduce your own carbon footprint.
- Make a decision to reduce, recycle, and reuse. Reduce waste by buying reusable products. Don't forget to recycle plastics, glass, and paper products. You may wish to reuse some of your old items to ___(2)___ , too. Take unneeded items ___(3)___ a recycling centre.
- Plant trees. Plants and trees are nature's lungs. They produce the oxygen we breathe. They also can shade your home, ___(4)___ it cooler so you don't need to run your air conditioners as much.
- Buy local goods. When you buy goods imported from far-away places, it takes a large ___(5)___ of energy to transport them to your area. This means that if you don't buy local food and products, then more ___(6)___ of carbon dioxide will happen during the transportation process.
(Adapted from English Discovery)