When you hoist national flag, you should hoist it（）.

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

单项选择题When a ship arrives at a foreign port, you should hoist （）national flag.

A. foreign country’s
B. own country’s
C. A or B
D. A+B

单项选择题We should （）the national flag when the sun sets.

A.lower
B.lowed
C.lowing
D.lowers

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

A.outstanding
B.secret
C.A or B
D.A+B

单项选择题A life-buoy should be （）at the gangway door.

A. locate
B. located
C. locating
D. to locate

单项选择题“In no time” means （）.

A. have no time
B. in a minute
C. a long time
D. a short time

单项选择题“Stand by the gangway” means “（）”.

A. Stand at the gangway
B. Wait at the gangway
C. Get the gangway ready
D. Keep on the gangway

单项选择题Get ready the mooring machinery, mooring lines and the gangway for （）.

A. loading cargo
B. arrival in port
C. departure from port
D. unloading cargo

单项选择题National flag should not be （）up.

A.rolling
B.rolls
C.rolled
D.roll

单项选择题You should keep national flag（）.

A.flying
B.flew
C.flown
D.flies