单项选择题
A.has B.keeps C.looks D.takes
Hang national flag upside down should be strictly （）.A....
单项选择题Hang national flag upside down should be strictly （）.
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
