单项选择题

A．as
B．since
C．when
D．while
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单项选择题
Where will they put the posters
A．In the hallways.
B．In the man’s room.
C．In the cafeteria.
D．In the radio station.
单项选择题
What does the professor mean
A．She has another meeting all day.
B．She feels the grade is all right.
C．She thinks it would be wrong to change the grade.
D．She can meet with the student that afternoon.
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