1Weshouldtakeanactiv的精选

问题详情：根据句意及汉语提示完成单词1.Weshouldtakeanactivepartin_______（保护）theenvironment.2.Whichanimalsarein_______（危险）?Doyouknow,Mike?3.Theyaredoingalotof_______（研究）toprotectanimals.4.Wehatewarandlove...