Completar frases 4 Ways to Conserve (p. 8)Versión en línea Read p. 8 and complete the spaces. por Peter Reilly 1 things energy add example conversation night your planet house reduce difficult need Energy does not have to be . You don't to buy a hydrongen - powered car , for , or sit in a dark every . Instead , try to do several small each day to the amount of you you use . These small things can up to big savings on energy bill , and they can be a big help to the as well .
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