How the fire in the hotel started ______ a mystery.A.remainB.to remainC.remainsD.is remain

“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)

How many people fell victims in the market bombing and the hospital fire？A．51.B．72.C．67.D．

The fire spread through the hotel very quickly but everyone ______ get out in time.A．had t

How long does it take for the runners to cross the starting line in recent Marathon races？

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