A. captainB. chief officerC. chief engineerD. pilotThe ……

单项选择题Who is the head of a ship? （）

A. Captain.
B. Chief mate.
C. Bosun.
D. Chief engineer.

单项选择题Are you the sailor on duty?（）

A. Yes, you are.
B. You are right.
C. Yes, I am.
D. Not at all.

单项选择题The captain of a ship can be also called （） .

A.master
B.agent
C.ship owner
D.pilot

单项选择题---What is your rudder? ---（）.

A.20°
B.20° starboard
C.Yes，sir
D.Sorry

单项选择题---Ease helm. ---Ease helm. （）.

A. Wheel midship
B. Course 20°
C. Steady
D. Port ten