1Weshouldtakeanactiv的精選

問題詳情：根據句意及漢語提示完成單詞1.Weshouldtakeanactivepartin_______（保護）theenvironment.2.Whichanimalsarein_______（危險）?Doyouknow,Mike?3.Theyaredoingalotof_______（研究）toprotectanimals.4.Wehatewarandlove...