单项选择题

A．Because the computer center closed earlier than usual.
B．Because he hasn’t finished his paper.
C．Because he has to stay up late typing his paper.
D．Because his computer isn’t working
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单项选择题
A．Ask Professor Lee to change his decision. B．Ask Professor Lee to call the library. C．Get the book directly from Professor Lee. D．Get Professor Lee’s written permission.
A．Ask Professor Lee to change his decision.
B．Ask Professor Lee to call the library.
C．Get the book directly from Professor Lee.
D．Get Professor Lee’s written permission.
单项选择题
A．The length of the course. B．The route the cyclists take. C．The number of participants. D．The month in which the tour is held.
A．The length of the course.
B．The route the cyclists take.
C．The number of participants.
D．The month in which the tour is held.
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