A fire started in the main engine room of a vessel when at sea*. Both main engines were stopped by the crew. The ship had* full electrical power supply during the event due to having a separate auxiliary engine room.The crew used* CO2 and water to start* the fire, which was finally extinguished* after about 4 hours.Which of the underlined words must be changed to get a correct meaning?

A
extinguished
B
start
C
used
D
had
E
at sea