初二年级英语首字母填空,
Somedoandsomedon'tit!Whalesaredividedintotwomaing_____.Thefirstaretoothedwhalesw______havelotsofteeththatusetoc______fishandotherseaanimals.Thisgroupincludeskillerwhalesanddolphins.Thes_______typearebaleenwhales.Humpbackwhalesandgreywhalesarebaleenwhales.Inf______,thebiggestanimalthateverexisted——evenbiggerthanthedinosaurs——isthebluewhale,anditdoesn'thaveanyteeth.