单项选择题
Which hold shall we put all the cargo in?（）
A. Hold No.2. B. No, on the bridge. C. Yes, in the captain’s cabin. D. Sorry, I don’t know.
单项选择题 The safe working load of the derrick is （）.
单项选择题 It’s going to rain. Don’t forget （）the hatches.
单项选择题 The crane is （）. Could you ask somebody to repair it?
