单项选择题
A.validity in B.valid for C.effective at D.effectiveness for
（）of this Deratting Exemption Certificate is hereby ext...
单项选择题（）of this Deratting Exemption Certificate is hereby extended until 4th Oct.2007 as the vessel is laden with cargo.
A.Validity B.Valid C.Validation D.The coming into force
If there are any Certificates expired or nearing expiry...
单项选择题If there are any Certificates expired or nearing expiry the master of a ship must shall apply fortheir （） at any port.
A.inspection or issuance B.requirements or renewal C.renewal or extension D.extension or expiring
My Deratization Exemption Certificate will become （）on ...
单项选择题My Deratization Exemption Certificate will become （）on the 16th of September.
A.due B.expire C.lawful D.non-effective
