59. Nowadays many children often say that there is a g__________ gap between them and their parents.

58. The government requires that a lady d__________ herself from sex attackers in the TV program.

57. I a__________ of your trying to earn some money, but please don't neglect your studies.

56. The manager is busy e__________ to customers why the goods were late.

55. He's depending on his mother to take care of the twins for him; she's had plenty of e__________(经验) in it.

54. She can look back on her career with great __________(满足).

53. This kind of exercise is most __________ (具有挑战性的), so it is a good test of your students’ ability.

52. Dose she __________(值得；应得) a reward for her bravery in that accident?

注意：每空只填1个单词。请将答案写在答题纸上相应题号的横线上。

51. In __________(最近的) attack one man was shot dead and two others were wounded.