... water by turning off the faucet when there is enough water supply. Unit 7Saving EnergyP: 42 Lesson 1 Listen and Read ... 1. What is Mrs. Ha worried about? What should you What should you do do to save energy to save energy at home and at at home and at school?school? Homework 1. ... save . . . . energy at home and at school. Possible answersPossible answers•Turn off the light when unnecesary•Turn off the radio and TV when nobody watches or listens•Save water by...