单项选择题 At common law the Shipowner has possessory liens on the cargo for（）.

单项选择题 As freight is prima facie payable on delivery of the goods，the burden of making out a case for advance freight（）on the Shipowner.

单项选择题 An American Shipowner can（）in an American port any ship in the same ownership as the one with which he has collided，in spite of the fact that the collision may have occurred in some distant part of the world.