A. take inB. take onC. take offD. take downDetach the f……

单项选择题Take （）of hydrants, fire hoses and nozzles.

A.careful
B.care
C.careless
D.carefully

单项选择题Water can put out common fires, such as （）.

A.wood，paper
B.textile
C.A+B
D.oil

单项选择题For the duties （）in one emergency, one person may do more than one job and one job may be done by more than one person.

A.assigning
B.assign
C.toassign
D.assigned

单项选择题Seven short blasts continued for one minute means （）.

A. fire alarm
B. boat alarm
C. man overboard
D. emergency alarm

单项选择题Several sand boxes need （）.

A. to repair and renew
B. repairing and renewing
C. repair and renew
D. repaired and renewed