单项选择题
Precautionary measures must be taken to（）safety of the stevedores，cargo and the ship.
A.insure B.ensure C.assure D.assume
单项选择题 Please stow the drums（）ends.
单项选择题 Please choke up the drums to prevent（）.
单项选择题 Please arrange（）a cleaning gang to sweep out all the ship’s cargo holds to enable her to receive cargo at this port.
