76. 爬长城是很累人的。

the Great Wall.

 用方框中所给动词的适当形式填空。 

 fly  visit  invent  develop  discuss 

71. Qingdao Aquarium is one of the most wonderful places.

72. There are several ways to solve this problem. Let’s have a now.

73. What’s the number of John’s to Beijing?

74. Yuan Longping is the first man hybrid rice in China.

75. Tea became popular after it.

70. Now many young people would like to buy things of a high (quality) .

69. — How often should the patient take these (pill) ?

—Three times a day.

68. I think A Bite of Chinais well worth (watch) .

67. Papermaking is a great (invent) of ancient China.

66. The sports meeting (success) ended yesterday.

65. — Do you know which country has the largest (人口) in the world?

 —Yes. China,of course.

64. My mother was very angry when she saw her room in a (乱七八糟) .

63. My computer caught a (病毒) and has caused a lot of problems.