The fire started on Sunday morning in the house of the King's baker（面包师)in Pud

A.to remain

B.remains

C.remain

D.is remaining

How the fire in the dancing hall started ______ a mystery.

A．to remain

B．remains

C．remain

D．is remaining

How the fire in the hotel started ______ a mystery.

A．remain

B．to remain

C．remains

D．is remaining

A.dropped

B.dropped off

C.scatted

D.were scatted

A、to remain

B、remains

C、remain

D、is remaining

A、to start

B、to starting

C、having started

D、having been started

A) furnitures and equipments B) furniture and equipment

C) furniture and equipments D) furnitures and equipment

A.ring buoys are thrown overboard

B.engines are stopped

C.fire pumps are started

D.life preservers have been issued to everyone