根据短文内容，在文中空格处填上一个恰当的词，使短文完整、通顺。(每空一词)Theearthisourhomeland.Wemustlookafterit.Doyouthinkit'sourdutyto____theenvironment?Sure,manyfamous____havestartedl

　　根据短文内容，在文中空格处填上一个恰当的词，使短文完整、通顺。(每空一词)

　　Theearthisourhomeland.Wemustlookafterit.Doyouthinkit'sourdutyto____theenvironment?Sure,manyfamous____havestartedlivingagreenlifetosetgoodmodelsforus.Somepeoplegotoworkbybikeor____foot.Somepeopleoftenreusewater.Forexample,____theyfinishwashingclothes,theyusethewatertocleanthefloororwaterflowers.Asforstudents,wecanalsodothingstohelp.Savingpaperisnecessary.Trytomakefulluseof____.Don'tthrowawaytheusedtextbooksbutgive____toyourbrothersorsisters.Andifwedon'twant____watchTV,turnit____intime.On____otherhand,we____planttreesasmanyaspossible.

　　It'sreallyimportanttoliveagreenlife,ahappierlife!