单项选择题
-（） -I’m the agent.
A. What are you? B. Where are you from? C. Who are you? D. What are you doing?
（）? -I am your agent. I want to see the captain. A. ...
（）? -I am your agent. I want to see the captain.
A. What are you? B. What can I do for you? C. Where are you from? D. What are you doing?
The gangway is too high. Can you lower it （）?A. a small...
单项选择题The gangway is too high. Can you lower it （）?
A. a small B. a little bit C. a many bit D. a much bit
As a duty sailor, you （）maintain a safety patrol.A.must...
单项选择题As a duty sailor, you （）maintain a safety patrol.
A.must B.should C.can D.need
