A.quicklyB.rapidlyC.slowlyD.speedilyWhen you hoist nati……

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