单项选择题

Peter will fail the exam ______ he works hard.

A．if
B．provided
C．until
D．unless
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单项选择题
Generally speaking, a well-behaved child has been properly ______ by his parents.
A．born up
B．brought up
C．got up
D．raised up
单项选择题
He will be in a wheelchair for ______ of his life.
A．the remaining
B．the rest
C．the remain
D．rest
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