... enormous (a)to lín, khæng lå= huge, very big water bill (n) hóa đơn tiền nước enormous (a) to lớn, khổng lồ plumber (n) thợ ống nước crack (n) vết nứt dripping faucet (n) vòi nước ... because it is (1 ) . Mrs. Mi (2 ) that Mrs. Ha should (3 ) the amount of water her family uses by doing three things. Firstly, Mrs. Ha should get a (4 ) to check if there are any (5 ) in the pipes. ... about . . . what you should do to save . . . . energy at home and at school. Unit 7Saving EnergyLesson 1 Listen and Read matter ? worried water bill. enormous. see dongs!...