单项选择题

We''ll visit Europe next year ______ we have enough money.

A．lest
B．until
C．unless
D．provided
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单项选择题
The hours _____the children spend in their one-way relationship with television people undoubtedly affect their relationships with real-life people.
A．in which
B．on which
C．when
D．that
单项选择题
She was complaining that the doctor was ______too much for the treatment he was giving her.
A．expending
B．offering
C．costing
D．charging
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