The diurnal pressure variation is most noticeable in the（）.

The undersigned（）that he is duly authorized by the said Government to issue this certificate.

Please report your position 4 hours（）advance.

Should any case or suspected case of quarantinable disease，or any case of eruptive disease or any death be discovered，the local Quarantine Officer must be（）immediately.

The survey will in no way（）cargo operation，but the main engine will require four-hour notice to be ready if necessary after completion of the survey.

That BE IT KNOWN THAT MV GLUCKAULF UNDER MY COMMAND HAS A DWC OF 12，431 M/T ON SUMMER LOADLINE，AND A BALE CAPACITY OF 18，439 CU.M.AND A GRAIN CAPACITY OF 19，941 CU.M.is likely to be the wording of（）.

The effect of wind on exposed areas of the vessel is most noticeable when（）.

Mariners are FIRST warned of serious defects or important changes to aids to navigation by means of（）.

On a clear，warm day，you notice the approach of a tall cumulus cloud. The cloud top has hard well defined edges and rain is falling from the dark lower edge. Should this cloud pass directly overhead（）.

The Master of a vessel may tender a Notice of Readiness to the charterer when the vessel （）.