A.currentB.pastC.favorableD.newTelevision keeps us info……

单项选择题Such problem （）air, water, and noise pollutions are becoming more and more serious in some big cities.

A.like
B.as
C.of
D.about

单项选择题I really hope that you will （）your trip to Canada and get back as soon as possible when people have to knowledge of the law.

A.prefer
B.refer
C.enjoy
D.i nfer

单项选择题He said that he was （）aware of the difficulty of being a father.

A.highly
B.fully
C.soundly
D.firmly

单项选择题Problems may （）

A.rise
B.jump
C.arise
D.lift

单项选择题The foreign guests said that they were very happy （）the great changes which had taken place in the village.

A.to
B.for
C.about
D.by