Minh uses solar energy to warm water.

Đáp án đúng là F

Script:

As you know, we use energy for cooking, heating, and lighting, but it's not cheap. So, how can we save energy at home? Lin, what do you do to save electricity? Well, I always turn off the lights before going to bed. I have some electrical appliances, such as the TV, the CD player. I turn them off when I don't use them. I think it helps us save electricity. You're right. What about you, Li? Well, we use low-energy light bulbs at my house. We always turn them off when we leave the room. We use solar panels to warm water too. It's cheap, unclean. Sounds interesting. Then how about you?