单项选择题

_____you’’ re early you can’’t be sure of getting a seat.

A．If
B．Unless
C．When
D．Because
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单项选择题
Shadowland in the last sentence refers to_____.
A．the wonderland on often dreams about
B．the bright future that one is looking forward to
C．the state of uncertainty before one’s final goal is reached
D．a world that exists only in one’s imagination
单项选择题
Since there isn’’t much time left, you can just tell us about it_________.
A．in detail
B．in short
C．in all
D．in brief
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