Severalloudspeakersare_______fromtheceilingandwecanhearthespeakerveryclearly.
A、connectedWedonothavea_______schoolinourinstitute.ThehighestdegreeweprovideforthestudentsisaB.A.andaB.S..
Whenaspacecrafttravels,oneofthemajorproblemsisreentryintotheEarth’s_______.
Asateacher,youshouldnot_______thestudentsfromaskingquestionsinclass.
John_______tobeapoliteman.Butinfactheisveryrude.
Thismorningintheclass,ourteacherlosthis______atlastbecausehecouldnotstandanymore.
