单项选择题
A. Our third officer is busy with his work. B. Our second officer is busy with his work. C. Our captain is busy with his work. D. Our chief officer is busy with his work.
A. I am your agent. B. I am from the shipyard. C. I am your ship chandler. D. I am the immigration officer.
A.I hope I have not kept you waiting for long. B. I hope I have not kept you waiting for a short time. C. I hope I have not kept you waiting for a while. D. I hope I have not kept you waiting for a little time.