单项选择题
A.show B.showed C.showing D.shows
（）attention to the safety of the gangway.A.PaidB.PutC.P...
单项选择题（）attention to the safety of the gangway.
A.Paid B.Put C.Pay D.Putting
Duty Sailors must greet visitors （）on gangway.A.politeB...
单项选择题Duty Sailors must greet visitors （）on gangway.
A.polite B.politely C.impolite D.impolitely
They should （）care of anchors to ensure that they are i...
单项选择题They should （）care of anchors to ensure that they are in normal condition.
A.took B.take C.taking D.taken
