单项选择题

A．1 hour.
B．2 hours.
C．3 hours.
D．4 hours.
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单项选择题
A．It was a long lecture, but easy to understand.B．It was not as easy as she had thought.C．It was as difficult as she had expected.D．It was interesting and easy to follow.
A．It was a long lecture, but easy to understand.
B．It was not as easy as she had thought.
C．It was as difficult as she had expected.
D．It was interesting and easy to follow.
单项选择题
A．March.B．April.C．May.D．June.
A．March.
B．April.
C．May.
D．June.
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