A.agentB.specialistC.masterD.authority
A. agent
B. specialist
C. master
D. authority
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A.membersB.colleaguesC.workmatesD.subscribers
A. members
B. colleagues
C. workmates
D. subscribers
A.commonB.averageC.traditionalD.general
A. common
B. average
C. traditional
D. general
A.manufactureB.foundC.introduceD.make
A. manufacture
B. found
C. introduce
D. make
A.formerB.onceC.existingD.ongoing
A. former
B. once
C. existing
D. ongoing