Grammar question: put these words in the right form (special, dead, predict...)

[Assile]

I would like to know if the words in brackets are correct.
The question is to put these words in the right form:
The original words are [special], [dead], [predict], [narrow], [predict]

... to do them justice, the ferry services are interrupted very seldom. There are always plenty of people who travel for business or health or pleasure, so a highly [specialized] [/color]sea trade has grown up to serve them in the narrowest part of the sleeve-the straits of Dover. Think of the problem .the ferry has to be a sea-going ship, equipped to meet everything from the sudden storms of October to the [dead] month-long gales of midwinter. It may leave Dover in sunshine and ten minutes later be in deep fog. And then the tides in the channel are never quite [predictable]. One wave rushes right round the north of the British Isles and comes down the North Sea while another sweeps the English Channel. They meet in the [narrowness] and ought to form a line of still water –'the null point'-which should join Rye on the English coast to Boulogne on the French. But winds hold these tides back or speed them up. So the 'the null point' flickers [predict] Where the tides meet, they nag and quarrel; and any wind stronger than a breeze stirs this welter into patternless movement which is ideal for sea-sickness.

Thank you