Câu hỏi:

     Our planet is pretty awesome, and taking care of it can be too! It's all about making small changes in your everyday life to be a green champion. At home, turn off lights (24) _______ you leave a room - it's a simple way to save energy and cash. Ditch the waste by packing a reusable water bottle and lunchbox. Plus, every little bit counts when it comes to water - take (25) _______ showers and fix leaky faucets. When errands call, consider walking, biking, or carpooling to cut down (26) _______ gas and emissions. Enjoy the fresh air and maybe even spot some cool birds on your way! Love a good deal and a unique find? Second-hand stores are treasure troves for clothes, furniture, and more. Got things you've outgrown? (27) _______ or sell them instead of tossing them in the trash. Remember, even small changes add up to a big difference for our planet's health, (28) _______ a healthier planet means a happier you.

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.