People living on part of the south coast of England face a serious problem. In 1993, the owners of a large hotel and of several houses discovered,0 (21) their horror, that their gardens had disappeared overnight. The sea had eaten into the soft limestone cliffs (22) their gardens had been built. While experts were studying the problem, the hotel and several houses disappeared altogether, (23) down the cliff and into the sea. Erosion of the white cliffs (24) the south coast of England has always been a problem but it has become more serious in recent years. Dozens of homes have had to be (25) as the sea has crept farther and farther inland. Experts have studied the areas most (26) and have drawn up a map for (27) people, (28) the year in which their homes will be (29) up by the hungry sea. (30) owners have (31) the Government to erect sea defenses to protect their homes. Government surveyors have pointed out that in most cases, this is impossible. New sea walls would (32) hundreds of millions of pounds and would (33) make the waves and currents go further along the coast, (34) the problem from one area to (35) . The danger is (36) to continue, they say, (37) the waves reach an inland area of hard rock which will not be eaten (38) limestone is. (39) , if you want to buy a cheap house with an (40) future, apply to a house agent in one of the threatened areas on the south coast of England. You can get a house for a knockdown price but it may turn out to be a knockdown home.