20.Theprospectofincreasedpriceshasalready______worries.
21.Thesuspect______thathehadnotbeenintheneighbourhoodatthetimeofthecrime.
22.Althoughthecolonists______tosomeextentwiththenativeAmericans,theIndians'influenceonAmericancultureandlanguagewasnotextensive.
23.E-mailisaconvenient,highlydemocraticinformalmediumforconveyingmessagesthat_______welltohumanneeds.
24.Thewingsofthebirdstill______afterithadbeenshotdown.
25.Thedisagreementovertraderestrictionscouldseriously?______relationsbetweenthetwocountries.
26.Whenyouputupwallpaper,shouldyou______theedgesorputthemnexttoeachother?