1) I think everyone shoulduse public buses to ________ the air pollution ( reduction)
2) Mrs Nga 's ________electricity bill is enormous . It is 500.000 đ ( recently )
3 ) A__________ faucet can waste 500 liters of water a mouth (drip)
4) I think you shoul go to school by bike
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5 ) turn off the stove or we will wastea lot of gas
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Sinh Học lớp 12
