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。
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。
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”。
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。
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。
80. Though_______money, his parents managed to send him to university.
A. lacked B. lacking of
C. lacking D. lacked in
答：C。1ack为及物动词。连词接分词相当于状语从句。
81. ______ to sunlight for too much time will do harm to one’s skin.
A. Exposed B. Having exposed
C. Being exposed D. After being exposed
答：C。 be exposed to暴露在，动名词做主语。
82. In order to gain a bigger share in the international market, many state-run com-panies are striving _______ their products more competitive.
A. to make B. making
C. to have made D. having made
答：A．不定式做目的状语。
83. I feel it is your husband who __________ for the spoiled child.
A. is to blame B. is going to blame
C. is to be blamed D. should blame
答：A．be to blame 某人应受到责备，常用不定式的主动表被动