单项选择题
A.prohibit B.prohibited C.prohibiting D.prohibits
When you hoist national flag, you should hoist it（）.A.q...
单项选择题When you hoist national flag, you should hoist it（）.
A.quickly B.rapidly C.slowly D.speedily
After a ship leaves a foreign port, you should （）that c...
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
When a ship arrives at a foreign port, you should hoist...
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
