選出最符合句意的一個單詞.
1 Carelessness is often the ( ) of fires.
a.errors
b.cause
c.threat
d.consequence
2 In the elementary school there is often a prize for good ( ).
a.conduct
b.defect
c.servant
d.threat
3 He could not ( ) green color from red one.
a.measure
b.symbolize
c.exhibit
d.differentiate
4 The doctor ( ) him that his child would recover from the illness.
a.refused
b.assisted
c.contrasted
d.assured
5 ( ) was with us and we won easily in the baseball game.
a.Defect
b.Luck
c.Vision
d.Justice
6 Heat caused the ( ) of steam from water.
a.mixture
b.scarcity
c.formation
d.profession
7 The thoughtless children ( ) the speech of the new boy.
a.mocked
b.sucked
c.owned
d.owed
8 A dog ( ) a keen sense of smell.
a.embraces
b.symbolizes
c.behaves
d.possesses
9 I ( ) it to you that I am still alive.
a.reign
b.hire
c.owe
d.own
10 A dove ( ) peace, whereas a hawk ( ) war.
a.symbolizes
b.contrasts
c.assures
d.differentiates
答案：
b a d d b
c a d c a