单项选择题
Water is used to put out （）.
A. oil fire
B. electrical fire
C. common fire
D. special fire
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单项选择题
Are all hoses and equipment ready（）?
A. for use
B. to use
C. in use
D. of use -
单项选择题
The foam extinguisher should be used （）.
A. in the end
B. upside down
C. down side
D. on top -
单项选择题
A fire extinguisher is used for （）fires.
A. stopping
B. putting out
C. putting
D. finishing
