A. feedback B.frost C.outline D.overlook

31.He drove very fast to _______ that red car.

A. scatter B.overtake C.site D.sponsor

32.Slides are sometimes called ________ film.

A. whistle B.vigorous C.robot D.transparent

33.Professor Smith _______the most important part in his paper.

A. omitted B.disputed C.designed D.chased

34.This knife is made of steel _______ and it can be used for a long time.

A. mixed B.alloy C.champion D.grasp

35.The theory of _______ was developed by Darwin and is now understood by nearly everybody in the world.

A. determination B.distribution C.discipline D.evolution

36.Mr. Green has recently been _______ to director of the president’s office.

A. pushed B.purchased C.promoted D.promised

37.We don’t think that his _______ ability has been well developed.

A. possible B.potential C.underneath D.vital

38.Our _______ talks promise a good future for our cooperation.

A. interior B.insurance C.initial D.invisible

39.The _______ can help people to see very small objects.

A. metropolitan B.microphone C.microscope D.microwave

40.Physically we feel comfortable. But _______, we suffer a lot.

A. psychologically B.moderately C.naturally D.precisely

41.Mary has a _______ view of our future. But nobody believes what she said.

A. portable B.primary C.possession D.positive

42.Nobody knows his _______ for helping us.

A. motive B.motion C.mood D.moral

43.Both sides agree to establish a _______ zone between the south and north.

A. midst B.mild C.mention D.neutral

44.This is a _______ moment for our research. We should be careful.

A. critical B.belt C.conscience D.copper