一道初二英语缺词填空
Kiteflyinghasbennp()inChinaforovertwothousandyears.ScientistshavebeenI()inkitesforalongtime.Theyhaveusedthemfors()weather,andfortestingnewkindsofflyingmachines.R()theyhavedevelopedmanynewkindsofkites.Someofthesecanpullboats,orliftamane().Somecanflyl()aplane.Somekitesarer()beautifulworksofart.Mostofthemlooklikeanimalsflyinginthesky.Peopleareinterestedink(),becausekiteflyingisakindofe()andascience-notonlychildrenlikeflyingkites,evenmanyoldpeopleliketoflykites,itisf()foreveryone.