单项选择题

A．It is appropriate.
B．It is too informal.
C．It is normal.
D．It is too formal.
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单项选择题
A．Her paper due the next week.B．Her most recent exam grade.C．The material on the exam.D．Not being able to get lunch
A．Her paper due the next week.
B．Her most recent exam grade.
C．The material on the exam.
D．Not being able to get lunch
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