79. -What happened to the priceless works of art?

-_____.

A. They were destroyed in the earthquake

B. The earthquake was destroying them

C. They destroyed in the earthquake

D. The earthquake destroyed them

答：A。主要问及艺术晶的情况，回答时应予以说明．A项中they指works of art。

78. Having a trip abroad is certainly good for the old couple, but it remains ______ whether they will enjoy it.

A. to see　　　　 B. to be seen　　

C. seeing　　　　 D. seen

答：B。老夫妻俩是否喜欢去国外旅游还有待于去弄清楚。再如：Much remains to be discovered, 还有很多东西有待于人们去发现。

77. It is said in Australia there is more land than the government knows_________.

A. it what to do with　 B. what to do it with

C. what to do with it　 D. to do what with it

答：C。不定式短语，意为“怎样利用土地”。

76. - How do you deal with the disagreement between the company and the customers?

　 -The key___________ the problem is to meet the demand ___________ by the customers.

A. to solving, making　　 B. to solving, made

C. to solve, making　　　 D. to solve, made

答：B．key to...，to。为介词，后接动名词做宾语，“顾客提出的要求”应用被动式。

75. It was raining heavily. Little Mary felt cold, soshestood ________to her mother.

A. close　 　　B. closely　

C. closed　　 D. closing

答：A。close为副词，与to构成固定搭配。

74. -Why are you looking so sad, Tom?

　 -The football game_____ for tomorrow will not be held.

A. planned　　 　　B. planning

C. to plan　　　 　D. to be planned

答：A。“已计划好的要在明天举行的球赛不能如期举行了”。从句童可判断出是过去分词做定语。D项表示将来。

73. Prices of daily goods _______ through a computer can be lower than store prices.

A. are bought　 　　B. bought　　　

C. been bought　 　　D. buying

答：B。从题干的句子结构可知canbe为谓语，故判断出是过去分词做定语。

72. ________ such heavy pollution already, it may now be too late to clean up the river.

A. Having suffered　　 B. Suffering

C. To suffer　　　 　D. Suffered

答：A。题中already是重要的信息，由此判断应使用完成式。

70. One learns a language by making mistakes and ______ them.

A. correct　　　　 B. correcting　　

C. corrects　　　　 D. to correct

答：D． eorrecting 与making并列

71 As we joined the big crowd I got ______　　　 from my friends.

A. separated　　 　B. spared　　　　

C. lost　　　　　 D. missed

答：A。get+pp．是一种被动式，从from一词可排除C项．

69. ________ late in the morning, Bob turned off the alarm,

A. To sleep　　　 B. Sleeping　　　

C. Sleep　　　　 D. Having slept

答：A。不定式做目的状语，该句意为 Bob turned off the alarm to sleep late in the morning, sleep late 睡懒觉。