单项选择题
On which side（）I rig the pilot ladder.
A.will B.can C.shall D.may
单项选择题 My ETA（）Cheng Shan Tou lighthouse is 0900 hours local time.
单项选择题 What（）your registry port, over.
单项选择题 After transferring a weight forward on a vessel，the draft at the center of flotation will（）.
