一、单项填空(从题中所给的A、B、C、D四个选项中,选出最佳选项)1.Withnaturalresourcesbecomingfewerandfewer,howtomakeuseof_______energy,suchassunlightandwind,hasbecomeourtoppriority.A.activeB.alternativeC.affordableD.ancient2.Theyhadbeenchildlessformanyyears,sowhenalittlegirlwasborninthefamily,theparentscouldn’thelpshowinggreat_______toher.A.allocationB.affectionC.appreciationD.admiration3.Topreve...