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In the past twenty years，there has been an increasing tendency for workers to move from one country to another.While some countries have restricted most__1__to local people，others have attracted and welcomed migrant workers.This is particularly the case in the Middle East，__2__increased oil incomes have enabled many countries to call in outsiders to improve local facilities.Thus the Middle East has attracted oil.workers __3__the U.S.A.and Europe.It has brought in workers from many countries, __4__ South Korea and Japan. In view of the difficult living and working __5__in the Middle East，it is not surprising that the pay is high to attract suitable workers.Many engineers and technicians call__6__ at least twice as much money in the Middle East as they Can in their own country, and this is a major __7__. Sometimes a disadvantage has a compensatingadvantage.For example，the __8__ living conditions often lead to increased friendship when workers have to __9__ on each other for safety and comfort.In a similar way, many migrant workers Can save large sums of money partly because of the__10__of entertainment facilities. The work is often complex and full of problems but this merely __11__ greater challenge to engineers who prefer to find solutions to problems rather than do routine work in their home country. One major problem which__12__ migrant workers in the Middle East is that their jobs are temporary ones.They are nearly always on__13__，so it is not easy for them to plan ahead with great confidence.This is to be __14__since no country welcomes a large number of foreign workers as permanent residents.In any__15__,migrant workers accept this disadvantage，along with others，because of the considerable financial benefits which they receive. | 
