6.A.for B.from C.of D.with
7.A.organizations B.organisms C.humans D.children
8.A.potential B.performance C.preference D.passion
9.A.as B.just as C.like D.unlike
10.A.ideological B.biological
C.social D.psychological
11.A.reviews B.reference
C.reaction D.recommendation
12.A.In a word B.In a sense
C.Indeed D.In other words
13.A.various B.different C.the higher D.the lower
14.A.revealed B.exposed C.engaged D.involved
15.A.regulations B.formations
C.rules D.constitutions
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