If our captain is not in his cabin, he must be on the （）.

单项选择题I’d like to have a talk （）your captain.

A.at
B.with
C.on
D.to

单项选择题Good morning, sir. （） are you looking for?

A. Whom
B. How
C. What business
D. Whose

单项选择题The gangway is about one meter higher. （）it, please.

A.Low
B.Lower
C.Lowe
D.Lowered

单项选择题Please tell the duty AB to lower the （）.

A.winch
B.radar
C.gangway
D.windlass

单项选择题The captain has （）ashore.

A.go
B.going
C.gone
D.went

单项选择题When a ship is in port, （）must keep a gangway watch.

A.officers
B.crew members
C.sailors
D.motorman

单项选择题When a ship is in port, the sailor on duty （）a gangway watch.

A.has
B.keeps
C.looks
D.takes

单项选择题Hang national flag upside down should be strictly （）.

A.prohibit
B.prohibited
C.prohibiting
D.prohibits

单项选择题When you hoist national flag, you should hoist it（）.

A.quickly
B.rapidly
C.slowly
D.speedily

单项选择题After a ship leaves a foreign port, you should （）that country’s national flag.

A.hoist
B.lower
C.hoisted
D.lowered