9.A.negative B.cheerful C.various D.complex
10.A.see B.seeing C.to see D.to seeing
11.A.modify B.copy C.give up D.continue
12.A.mature B.influenced C.unique D.independent
13.A.not B.besides C.even D.finally
14.A.idea B.wonder C.stamp D.effect
15.A.luckily B.for example
C.at most D.theoretically
16.A.death B.rewards C.advice D.teaching
17.A.as B.being C.of D.for
18.A.even B.at all C.alike D.as a whole
19.A.Oh B.Alas C.Right D.As
20.A.result B.effect C.scale D.cause