A.reduced B.increased C.normal D.half
A.Continue B.Start C.Commence D.Stop
A.deteriorate B.bad C.heavy D.serous
A.at B.with C.on D.within
A.On B.In C.At D.During
A.When B.How C.If D.Should
A.At B.On C.Of D.In
A.In B.On C.From D.To
A.Fish B.Fishing C.Fisher D.Fishery
A.prevent any possible accident at sea B.prepare a reasonable forecast of the wind and weather C.help the mariner to fix a accurate ship's position D.aid the salvage of a ship in peril