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
46.We need help from the other countries.But we do not _______ on others for support.
A.engage
B.lean
C.strip
D.multiply
47.We will _______ the plan because of the cost.
A.council
B.journal
C.damp
D.oppose
48.Our train is _______ at Shanghai at seven o'clock this evening.
A.due
B.crystal
C.cushion
D.cooperation
49.Her voice was _______ in the noise.
A.filled
B.entertained
C.enormous
D.drowned
50.He is very _______ in his family and never does anything against his wife.
A.hence
B.possess
C.outer
D.humble