ª¤ A) owe to C) as to

ª¤ B) due to D) as for

ª¤ 44. It was because she was too inexperienced ____ she didn ' t

know how to deal with the situation.

ª¤ A) so that C) that is why

ª¤ B) that D) so

ª¤ 45. We obey him, ____ we are afraid of him, ____ we honor and love him.

ª¤ A) not for,but for C) not that,but that

ª¤ B) not as, but as D) not since, but since

ª¤ 46. ____ from space, the earth looks like a huge water ª² covered globe.

ª¤ A) Having seen C) Seeing

ª¤ B) To see D) Seen

ª¤ 47. ____ the increase in air fares, most people still prefer

to travel by plane.

ª¤ A) No matter how C) Though

ª¤ B) Regardless D) Despite

ª¤ 48. Now the need ____ foreign languages is becoming greater

and greater.

ª¤ A) to learn C) to be learned

ª¤ B) learning D) being learned

ª¤ 49. He has been studying here for three years, by next summer he

____.

ª¤ A) will graduate C) will have graduated

ª¤ B) will be graduated D) will be graduating

ª¤ 50. She didn ' t answer the telephone, she ____ asleep.

ª¤ A) must fall C) should have fallen

ª¤ B) must have fallen D) can have fallen

ª¤ 51. Electrical energy ____ from the sun in a round ª² way is the most widely used energy today.

ª¤ A) come C) coming

ª¤ B) to come D) having come

ª¤ 52. You remain about the same as when you parted with us ____

you've got a little thinner.

ª¤ A) except for C) except that

ª¤ B) besides D) because

ª¤ 53. Fertilizers are used primarily to enrich the soil and ____ yield.

ª¤ A) increasing C) to increase

ª¤ B) increase D) have increased

ª¤ 54. A beam of light will not bend round corners unless ____

to do so with the help of a reflecting device.

ª¤ A) made C) having made

ª¤ B) being made D) to be made

ª¤ 55. He has a large collection of books, ____ are written in

English.

ª¤ A) many among C) many ones of which

ª¤ B) many in which D) many of which

ª¤ 56. I don ' t think it is funny, but my friend ____.

ª¤ A) cannot help to laugh C) cannot but laughing

ª¤ B) cannot help laugh D) cannot help but laugh

ª¤ 57. Science and technology have brought ____ many changes in

our lives.

ª¤ A) forward C) out

ª¤ B) about D) to

ª¤ 58. With the map of the city to help them, they had no ____

the place.

ª¤ A) difficulties in finding C) difficulty to find

ª¤ B) difficulty in finding D) trouble to find

ª¤ 59. It is difficult to understand this kind of ____ calculation.

ª¤ A) intricate C) indispensable

ª¤ B) varied D) equable

ª¤ 60. Industrial managers employ specialists to keep machines working properly and to ____ the supply of spare parts.

ª¤ A) ensure C) guarantee

ª¤ B) promise D) assure

ª¤ 61. The competition is open to both professionals and ____.

ª¤ A) aliens C) juniors

ª¤ B) amateurs D) editors

ª¤ 62. He ' s ____ to his family because he never tells them he ' s

working late.

ª¤ A) inconsiderate C) careless

ª¤ B) thoughtless D)neckless

ª¤ 63. They did their utmost and made ____ progress in a short