阅读下列各小题，根据括号内的汉语提示，用句末括号内的英语单词完成句子，并将答案写在答题卡上的相应题号后。71Expo 2010 Shanghai China 71．is bein

阅读下列各小题，根据括号内的汉语提示，用句末括号内的英语单词完成句子，并将答案写在答题卡上的相应题号后。
71．Expo 2010 Shanghai China 71．is being held (在召开)on both banks of the Huangpu River in the city of Shanghai, China, from May 1 to October 31, 2010.（hold）
72．The official song of the 2010 World Cup in South Africa titled Waka Waka features many musical elements that72.date back to\from （追溯到）the ancient times.(date)
73．He looks sleepy. He must73．have stayed up (熬夜了)last night, writing the essay. (stay)
74．— Is Bob still performing?
— I’m afraid not. He is said 74．to have left （离开）the stage already as he has become an official.(leave)
75．75．Adjusting to (适应) the tropical heat was more difficult than they had expected. (adjust)
76．When the survivor woke up, he wanted to know 71．is being held 76．who it was 72.date back to\from (是谁) that saved him from that burning house. (who)
77．The more ways we have of looking at a problem , 77. the more likely it is （越有可能）that we can find a solution. (likely)
78．His younger sister teaches in a secondary school, in front of 73．have stayed up 78. which flows a small river 74．to have left (流淌着一条小河). (flow)
79．It is possible that the King of Stonehenge was linked to the stones: he 79．may well have had a hand in
(很可能参与了) in planning the monument, or in helping transport and pull up the stones. (hand)
80．Representatives attending Copenhagen Conference recommended that 75．Adjusting to 80. strict measures (should) be taken 76．who it was (采取严厉措施) to reduce carbon emission. (take)

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