Our environment is under threat. We have a responsibility to do something about it. Here are five things we can all do to help:

     * Save energy: Turn off (24) _______ and appliances when you leave a room or go out. Use energy-saving light bulbs. Don't leave your TV or computer on (25) _______ - switch them off completely.

     * Recycle: Sort out rubbish for recycling. Reuse plastic bags. Buy recycled products. This reduces the need to produce new materials.

     * Plant trees: Trees absorb carbon dioxide, (26) _______ causes pollution. They also produce oxygen. Deforestation (cutting down trees) is a big problem in many parts of the world. Support reforestation projects.

     * Raise awareness: Talk to friends, family, and colleagues about environmental issues. Share information on social media. Encourage others to (27) _______ action.

     * Protect wildlife: Visit nature reserves and national parks. Follow guidelines for visitors. Don't buy souvenirs made from endangered animals or plants.

     Governments and businesses also need to act. They should invest in (28) _______ energy sources like solar and wind power. They should reduce pollution and waste. And they should support sustainable development that meets our needs while protecting the planet for future generations.

     The time to act is now. If we all do our part, we can make a difference.

Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct option that best fits each of the numbered blanks from 24 to 28.