单项选择题

If you have any trouble, you can turn _______ him for help.

A．for
B．at
C．to
D．in
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单项选择题
You can stay in my room _______ you promise not to use the computer.
A．so far as
B．except
C．unless
D．provided
单项选择题
Buried under the ground _______.
A．some treasure was
B．was some treasure
C．did some treasure be
D．did be some treasure
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