单项选择题

A．Synthetic fuel.
B．Solar energy.
C．Alcohol.
D．Electricity.
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单项选择题
A．Save time by using a computer.B．Buy her own computer.C．Borrow Martha’ s computer.D．Stay home and complete her paper.
A．Save time by using a computer.
B．Buy her own computer.
C．Borrow Martha’ s computer.
D．Stay home and complete her paper.
单项选择题
A．It cost much more than its worth.B．It should be brought up- to- date.C．It calls for immediate repairs.D．It can still be used for a long time.
A．It cost much more than its worth.
B．It should be brought up- to- date.
C．It calls for immediate repairs.
D．It can still be used for a long time.
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