... at home and at school. enormous (a)to lín, khæng lå= huge, very big Unit 7 Saving Energy Lesson 1 Listen and Read water bill (n) hóa đơn tiền nước enormous (a) to lớn, khổng lồ plumber ... save energy at home and at school? Homework 1. Learn the new words by heart.2. Write a short passage about . . . what you should do to save . . . . energy at home and at school. enormous ... baths. Finally, she should remember to turn off the (7) . enormoussuggestsreduceplumbercracksshowersfaucets Lucky Numbers! 7 1 462853P.W S.E.C What is Mrs. Ha worried about?...