57. The rapid growing population is one of the major problems____ the world. We must keep the number of people_____ growing so fast in order to let our sons and grandsons live a better life.

A. faced; from　　　　　　 B. facing; /　　 C. facing; from　　　　　 D. faced; /

56. A desert is a place_____ is_______ nothing but sand. But a camel can walk in the desert for months without any food or water.

A. where; almost　　　 B. there; nearly　　 C. where there; almost　　　 　D. that; almost

55. The______ woman was______ to hospital by an ambulance.

A. gas-poisoning; taken B. gas-poisoned; run C. gas-poisoning; carried D. gas-poisoned; rushed

54. If you______ your belief, you promise to succeed eventually.

A. hug　　　　　 B. stick up for　　　 C. keep up with　　　　　 D. hold out

53. Dr Black comes from either Oxford or Cambridge, I can’t remember______.

A. where　　　　 B. there　 C. which　　　　　 D. that

52. -Can children swim in this pool?　 -Yes, however, at no time______ alone.

A. should they swim　 B. should swim they　 C. shouldn’t they swim　 D. they should swim

51. Only after_______ reached eighteen_______ join the army.

A. have you; you can　 B. have you; can you　 C. you have; you can　 　D. you have; can you

50. He was so excited that he could say nothing but hold his sister’s hands firmly. His sister said nothing, either, _______ tears coming into her face.

A. surprising　　　　　 　B. surprised　　　　 C. excited　　　　　　 D. exciting

49. After reading the article written by the boy, the teacher was very angry, and she_____ many sentences in it.

A. crossed out　　 B. cut off　 C. put on　　　　　 D. left off

48. It is_____ to write a letter, _______ to write history.

A. one; the other　　　 　B. one thing; another　 C. some; some　　　 　D. this; that