74. This old man had to make his living by sell newspapers.

　　　　　 A　　　　　 B　　　　　 C　 D　　　　　　　　 (　　　 )　 _____　　

73. They have been marry for about 20 years.

　　 A　　 B　　　 C　　　　　　　 D　　　　　　　　　 (　　　 )　 _________

72. You’d better to work out this maths problem yourself.

　　　　　 A　　　 B　　　　　 C　　　　　　 D　　　　　　 (　　　　 )　 __________

71.The boy spent three hours 　finish his homework.

　　　　　 A　　　　　 B　　　 C　　　 D　　　　　　　　　 (　　　　 )　 ________

70. Tom is a kind boy. He is always ___________(friend) to others.

(C) 下列各句划线部分中有一处错误，请找出错误选项，并在横线上写出正确形式。

69. I think it___________(danger) for children to be close to wild animals.

68. When you have difficulty___________(solve) the problems, please ask me for help.

67. The party yesterday was a big __________(succeed). Everyone had a good time.

66. The robot will __________(design) to do most of housework for human in the near future.

65. Scientists are working hard to find out a way to cure this special disease caused by an unknown________(病毒).

(B) 根据句子意思，用括号中所给词的适当形式填空。