Thereareatleasttwogoodreasonsaccountingfor______.Ontheonehand,________.Ontheotherhand,_______isduetothefactthat________.Inaddition,________isresponsiblefor_______.Maybetherearesomeotherreasonstoshow________.Butitisgenerallybelievedthattheabovementionedreasonsarecommonlyconvincing.
Ascanbeclearlyseenfromthegraph/table/chart(Asisshowninthetable/figure),greatchangedhavetakenplacein_______,The_________have/hasskyrocketed/jumpedfrom_____to_____.Whenitcomestothereasonsforthechanges,differentpeoplegivedifferentexplanations.HereIshalljustgiveafew.Tobeginwith,______What’smore,___________,Lastbutnotleast,________.Whileitisdesirablethat___________,therearestillsomeproblemsanddifficultiesfor__________Firstly,__________,Inaddition,__________,Inaword,__________.