Mr.Greenisusedto_________twoapplesafterluncheveryday.
A、eat
B、eating
C、eaten
D、ate
TheBentPyramidoutsideCairo__________ancientEgypt’sfirstattempttobuildasmooth-sidedpyramid.
A、hasbeenbelievedtohavebeen
B、wasbelievedtobe
C、isbelievedtohavebeen
D、isbelievedtobe
It’simportant_____aforeignlanguage
A、ofustolearn
B、Forustolearn
C、ofuslearning
D、foruslearning
Toobtainasatisfactoryresult，onemustapplytwo____ofpaintonacleansurface.
A、coats
B、levels
C、times
D、courses
Breadandbutter____likedbyWesterners.
A、is
B、are
C、were
D、be