1.Hedroveveryfastto_______thatredcar.
2.Slidesaresometimescalled________film.
3.ProfessorSmith_______themostimportantpartinhispaper.
4.Thisknifeismadeofsteel_______anditcanbeusedforalongtime.
5.Thetheoryof_______wasdevelopedbyDarwinandisnowunderstoodbynearlyeverybodyintheworld.
6.Mr.Greenhasrecentlybeen_______todirectorofthepresident’soffice.
7.Wedon’tthinkthathis_______abilityhasbeenwelldeveloped.
8.Our_______talkspromiseagoodfutureforourcooperation.
9.The_______canhelppeopletoseeverysmallobjects.
10.Physicallywefeelcomfortable.But_______,wesufferalot.