单项选择题

The fire extinguisher uses a chemical ______ rather than water.

A．foam
B．foil
C．fraud
D．fuse
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单项选择题
Plenty of families were ______ from their homes during the war.
A．evaporated
B．evacuated
C．evaluated
D．elevated
单项选择题
After the death of the king, his two sons asserted their right to the ______.
A．thrill
B．thirst
C．thorn
D．throne
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