Weare_______attherapidprogressMarkhasmadeinthissemester.
A、distinguishedSeveralloudspeakersare_______fromtheceilingandwecanhearthespeakerveryclearly.
Wedonothavea_______schoolinourinstitute.ThehighestdegreeweprovideforthestudentsisaB.A.andaB.S..
Thisriverissobigthatitisimpossibletobuilda_______underitwithoutmoderntechnology.
Sometimesitisverydifficultto_______someoftheEnglishwords.Eventhenativespeakercannothelp.
Wecannottrusthimanymorebecauseheoften________hisduty.