on the air,be full of,pick up,put up,noise pollution,contact,C,C,A,B,A,C,C,A,B,C,by taking a shower instead of a bath. She usually,goes to school by bike. At school, she doesnt leave the tap on after washing her hands.,When she leaves the classroom, she switches off the lights. In addition, she uses both,sides of the paper when doing her homework in the evening. She thinks that in order,to protect the environment, everyone should be green.,Do you take a car? 或Will you take a car?,Do you often use a computer? 或Do you often use computers?,