A fire starts when the following _____ factors come together.A.combustible materialB.ignit

When occurring a fire in the scavenge air box, the following measures should be taken except for .

“The engine not obtaining the sufficient speed for firing” means that _____.A.the start fa

A cigarette thrown into the woods in dry weather may start a fire.（英译中)

They were also quite sure（)a cigarette end did not start the fire.

Who is to _____ for starting the fire ？A.chargeB.blameC.accuseD.indict

How the fire in the dancing hall started ______ a mystery.A.to remainB.remainsC.remainD.is