80. The camera was one of the greatest _________________ (发明) in the 19^th century.

79. On my ________________ (第九) birthday, I got a computer from my aunt.

78. We are often told not to be __________________ (紧张的) in the examinations.

77. Both of my best friends were born in ________________ (十月).

76. There are __________________ (较少的) apples in this basket. I prefer that one.

75. Mom, I’m so h__________________. Can I have something to eat?

74. The apartment is so expensive that Mr. Green can’t a__________________ it.

73. The West Lake a__________________ thousands of tourists to Hangzhou every day.

72. Li Lei is an h__________________ boy, he never tells lies.