17无( )
A. When commercial airlines began to develop faster;
B. When investigators found the weakness of rectangular windows.
C. When the speed of commercial airplanes greatly increased.
D. When two commercial airplanes crashed within months.
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8. 无( )
A. To contact the landlord soon.
B. To buy a new set of furniture.
C. To share the apartment with the woman
D. To show the woman around his neighborhood
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5. The man insisted ( ) a taxi for me even though I told him I lived nearby.
A. find
B. to find
C. on finding
D. in finding
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14. 无( )
A. They can make us happy.
B. They can promote our image.
C. They are not necessary.
D. They are what we need.
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16. 无( )
A. A Harry Potter-themed (主题) study-abroad trip.
B. Alesson on J.K. Rowling＇s wizard＇s (魔法师)world.
C. Alecture titled British Culture and Harry Potter."
D. A course on famous places in Harry Potter books.
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9. Leadership is all about getting people to give their best,helping them to grow to their fullest potential, and motivating them to work toward a common goal.Leaders make the right things happen when they＇re supposed to. A good leader, an effective leader,is one who has respect for others. A leader who has respect for other people will find that respect is returned.And all concerned will be motivated to work together.
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2. 无( )
A. Because there are only half a million elephants in Africa.
B. Because the elephant population in Asia has declined .
C. Because it can save over 20,000 elephants a year.
D. Because lt will help preserve endangered(濒危的) elephants.
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1、Unit 1 追梦的路上充满了挑战和艰辛,可是勇敢者会坚信自己,绝不让畏惧占上风。俞敏洪就是一个极好的例子。他一生 中经历了屡次失败,但这些失败增加了他珍惜生命每一分钟并乐 于助人的动力。他说,梦想是强烈吸引人竭尽全力去追求的东西。现在他拥有一-家教育科技集团,正用自己的创意为中国的民办教育提供一种模式.
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13无( )
A. lt is in the speaker＇s mind.
B. It is a drawing on a piece of paper.
C. It opens only to the speaker＇s friends.
D. It has the speaker as the only one user.
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7. Tom owns ( ) larger collection of books than any other student in our class.
A. the; 不填
B. a; 不填
C. a; the
D. 不填; the
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