C.by D.through
2.A.study B.imitate
C.stimulate D.learn
3.A.mates B.relatives
C.members D.fellows
4.A.which B.that
C.those D.ones
5.A.even B.despite
C.even if D.in spite of
6.A.mind B.concern
C.care D.involve
7.A.hire B.apply
C.adopt D.use
8.A.in public B.at most
C.at large D.at best
9.A.right B.privilege
C.share D.possession
10.A.consists B.comprises
C.constitutes D.composes