单项选择题 Advance freight must（）to the Shipowner even if the goods are lost (by excepted perils) before payment，where they are lost after the due date of payment; nor is it recoverable if the goods are so lost after payment．

单项选择题 A vessel’s Certificate of Documentation（）.

单项选择题 A vessel arrives in a foreign port and the Master is informed that the vessel is being sold to foreign interests. The new owners request that the crew remain on board to complete the voyage. Under these circumstances，the crew（）.