A.must keep
B.must be kept
C.must be keep
D.must be in
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A.won’t
B.needn’t
C.can’t
D.may not
A.to look
B.looking
C.look
D.looked
A.write
B.have written
C.was writing
D.have been writing
A.need
B.should
C.oughtto
D.have to
A.Should
B.Will
C.Shall
D.Are
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The doctor will get more practice out of me than out of ten ordinary patients.
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All of them are （） at Lana"s achievement.
What effect has the Internet had on music piracy
Cars turn into dead weapons when they are driven carelessly.