A.clear B.to clear C.clearing D.cleared
A.How much hatches B.How many hatch C.How much hatch D.How many hatches
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
A.Port B.Commercial area C.Berth D.Roadstead
A.at B.in C.by D.with
A.You’d better B.You would better C.You at least D.You at most
A.On B.In C.At D.During
A.In B.On C.To D.For
A.in B.on C.with D.by
A.received B.saw C.met D.encountered