I have（）to tell you.

A mooring line that checks forward motion of a vessel at a pier is a（）.

A mooring line leading at nearly right angles to the keel is a（）.

My Deratization Exemption Certificate will（）by the end of this month.

I deem（）unnecessary to do so.

Mr.Jones was tired，he will（）over his duty of look out to another sailor.

I hereby request permission（）the ship’s main engine for routine maintenance.

I expect to（）when tide rises.

My anchor is clear（）the bottom.

I am（）attack of pirates.