单项选择题

It is essential that you （）a high grade to pass the exam

A. get  
B. got   
C. will get 
D. getting

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单项选择题
Our boss was surprised to hear that we'd finished our work so （）

A. quickest  
B. quicken
C. quickly  
D. quicker
单项选择题
Is there a bookstore （）the office

A. next   
B. near
C. between 
D. among
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