Lights in the House
练习内容
My mother was mad!\nWhat was wrong? She saw all the lights in the house were on and no one was home.\nMom said, "When you turn off the lights, you save energy, you save money and you save the environm
My mother was mad!\nWhat was wrong? She saw all the lights in the house were on and no one was home.\nMom said, "When you turn off the lights, you save energy, you save money and you save the environm