They should take care of the （系泊缆绳）（）.

单项选择题Pay attention to the （）（安全）of the gangway.

A.danger
B.safe
C.safely
D.safety

单项选择题If our captain is not in his cabin, he must be on the（驾驶台）（）.

A. paint locker
B. engine room
C. bridge
D. shore

单项选择题Duty sailors will consider the conditions of （装卸货）（）.

A. cargo handled
B. cargo handles
C. cargo handle
D. cargo handling

单项选择题You should （松）（）the mooring lines at the same time when the wind is big.

A.fasten
B.slack
C.fast
D.slacken

单项选择题When we meet a（军舰）（）, we should lower national flag.

A. warship
B. boat
C. container ship
D. bulk carrier