单项选择题
A. foreign country’s B. own country’s C. A or B D. A+B
We should （）the national flag when the sun sets.A.lower...
单项选择题We should （）the national flag when the sun sets.
A.lower B.lowed C.lowing D.lowers
When you hoist national flag, you should hoist it in （）...
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
A life-buoy should be （）at the gangway door.A. locateB....
单项选择题A life-buoy should be （）at the gangway door.
A. locate B. located C. locating D. to locate
