单项选择题
A.Hoist B.Top C.Lower D.Bring
You should keep national flag（飘扬）（）.A.flewB.flownC.flyi...
单项选择题You should keep national flag（飘扬）（）.
A.flew B.flown C.flying D.flies
（）（调整）ropes when necessary.A.TryB.AdjustC.NoticeD.Opera...
单项选择题（）（调整）ropes when necessary.
A.Try B.Adjust C.Notice D.Operate
I shall keep the﹙保安巡逻)（） .A. coast patrolB. inshore pat...
单项选择题I shall keep the﹙保安巡逻)（） .
A. coast patrol B. inshore patrol C. patrol service D. security patrol
