题目内容：
回答题：Everyoneofuscanmakeagreateffortsto76.__________
cutofftheuseofenergyinourcountry.Tobeginwith,all77.__________
ofuscanstartreducingtotheuseofoilbydrivingoily78.__________
whenwehavearealneed.Thatwon'tbeeasy,Iknow.79.__________
butwehavetostartanywhere.What'smore,wecangoto80__________
workbybikeonceandtwiceaweek,andwecanalsobuy81__________
smallercarsthatbumlessoil.Otherwayistowatchour82__________
everydayuseofwaterandelectricathome.Forexample,83__________
howmanytimeshaveyouwalkedoutofaroomandleavethe84__________
lightsortelevisionwhennooneelsewasthere?85__________
请将答案填入横线上__________
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答案解析：