41.Glass may _______ at high temperature.
A. profit B.pronounce C.sting D.melt
42.Silver _______ electricity far better than other materials.
A. equips B.strikes C.cracks D.conducts
43.Everyone is encouraged to _______ food or clothing for those who suffered a great deal in the flood.
A. attribute B.distribute C.contribute D.drift
44.White teeth are a sharp _______ to black skin.
A. content B.contract C.contrast D.contain
45.Tom is _______ about photography. He spends nearly all his money on it.
A. justice B.innocent C.fierce D.crazy
41.D 42.D 43.C 44.C 45.D