单项选择题

The decision about such a big project can not be made（）each member of the board agrees.

A．if
B．unless
C．though
D．as

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单项选择题
There was no proof to show that Charles had committed the crime,（）he was set free.

A．but
B．for
C．or
D．so
单项选择题
10（）

A．9am.
B．10am.
C．3pm.
D．2pm.
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