【根据首字母,完成短文It'scleartosee,nowadays,lotsofbirdsareindanger.Birdsarehuman'sgoodfarmers,theycanplanttreesfrompests.Ifwedon'trealizehowimportantitis,oure______willbeverybad.Thatisthereaonw___birdsmustbe】

　　根据首字母,完成短文

　　It'scleartosee,nowadays,lotsofbirdsareindanger.Birdsarehuman'sgoodfarmers,theycanplanttreesfrompests.Ifwedon'trealizehowimportantitis,oure______willbeverybad.Thatisthereaonw___birdsmustbeprotected.Inspiteofthis,manypeoplestillkillbirdsforfun.Wahavetostopit.Ibelieve,whenp_____stopdoingthis,andbegintoprotectbirdsandtheirs,humanwillalsohaveab___life.