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

How the fire in the hotel started ______ a mystery.

A．remain

B．to remain

C．remains

D．is remaining

请帮忙给出正确答案和分析，谢谢！

您可能感兴趣的试题

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

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

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

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

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

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

答案解析
How the fire in the dancing hall started _________ a mystery.A. to remainB. remainsC.

答案解析