单项选择题

The severe flood ______ damage to the people, had we not built so many reservoirs.

A．can cause
B．might have caused
C．had caused
D．must have caused
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单项选择题
The garden ______ a strong fragrance.
A．gave up
B．gave off
C．gave in
D．gave away
单项选择题
Housewives who do not go out to work often feel that they are not working to their full ______.
A．possibility
B．strength
C．length
D．capacity
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