A.Keep B.Make C.Have D.Take
单项选择题Put the() on the lines.
A. rat guards B. stopping guards C. fenders D. planks
单项选择题We should ()the national flag when the sun rises.
A.hoist B.hoists C.hoisting D.hoisted
单项选择题The main tasks for sailors on duty are, first of all,()the persons who come on board to do their business.
A.received B.receives C.receiving D.receive
单项选择题Where are ()goods carried on board?
A.danger B.dangerous C.A+B D.A or B
单项选择题()social instruction on cargo securing.
A.Has B.Had C.Have D.Having