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1.A_________gainorprofitistheactualgainafterallworkingexpenseshavebeenpaid.
A.gross
B.net
C.positive
D.negative

2.Abetterworkingenvironmentimprovespeople'sperformance,and _________productivity.
A.furthermore
B.hence
C.moreover
D.even

3.Acompletelynewsituationwill________whentheexaminationsystemcomesintoexist-ence.
A.rise
B.arise
C.raise
D.arouse

4.Acorkwill________inwater,butastonesinks.
A.fly
B.flow
C.float
D.drift

5.Adarksuitispreferable_________alightoneforeveningwear.
A.to
B.than
C.for
D.against

6.Adeputydirectorwillbe_________thewholefactorynextweekwhenthedirectorisawayforamonth.
A.infavorof
B.inchargeof
C.inplaceof
D.onbehalfof

7.Afewminutesafter

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