There are some navigational instruments（）.

单项选择题Please supply my vessel（）300 tons of fresh water.

A.with
B.on
C.by
D.for

单项选择题“Destination” means（）.

A.the last port
B.the home port
C.the port of registry
D.the final port the voyage

单项选择题You must（）pilot ladder on port side.

A.rig
B.make
C.bring
D.put on

单项选择题Four years（）my ship called at this port.

A.before
B.after
C.ago
D.since

单项选择题The man（）you saw yesterday is my Chief Officer.

A.who
B.whom
C.what
D.whose