A.by long distance B.by the darkness at night C.by a vessel in front D.by fog or falling snow
A.Middle of the channel B.Starboard side of the channel C.Port side of the channel D.Side of the channel that has the widest turns
A.stay near the middle of the channel B.keep to the starboard side of any vessels you meet C.exchange whistle signals with any other vessels in the channel D.keep to the side of the channel which lies to your starboard