单项选择题

Where could she ______ the key I couldn't find anywhere.

A．put
B．have put
C．has put
D．had put
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单项选择题
In that country, the cost of living ______ quickly after the war broke out.
A．raced
B．raised
C．arose
D．rose
单项选择题
I hope they ______ this road by the time we come back next summer.
A．have repaired
B．will repair
C．are to repair
D．will have repaired
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