單項選擇題The pilot launches display the pilot flag().

A.at night
B.by day
C.when in fog
D.in bad weather


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1.單項選擇題The pilot said he()our vessel directly to the berth.

A.will take
B.took
C.is taking
D.would take

3.單項選擇題The rain was heavy and()the visibility became very poor.

A.onsequently
B.constantly
C.continuously
D.consistently

4.單項選擇題The ship()the Atlantic to America next week.

A.shall cross
B.shall cross to
C.cross
D.sail cross

5.單項選擇題The ship is not very stable, please()when making a turn.

A.stop down
B.speed down
C.slow down
D.down slow