III. Put in prepositions where necessary. ...recent years there has been increasing interest ... global warming and there is no doubt that Man’s activities are partly responsible... it. We can’t afford to ignore a warning ... its possible effect ... the climate. Forecasts ... a warmer wetter world suggest, for instance, that the sea will have risen by as much as five metres ... 2050. ... that case large areas of London and many other coastal towns would be ... water.

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