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Complete the text either the correct options.
The number of people who travel for business or educational purposes has ___ ( a).deteriorate b).increased c).spead d).steengthen) considerably over recent years. They move from city to city and from country to country looking for educational ___ ( a).indexes b).benefits c).opportunities d).opponents) or for better-paid jobs. Unfortunately, there are not the only reasons for migration. Often people have to flee from wars, terrorists, hunger, and poverty. They try to emigrate to other countries, sometimes illegally, seeking ___ ( a).safety b).concern c).fluency d).identity) and a decent life. The mew reality, ___ ( a).as a result b).furthermore c).moreover d).however), can be tougher than they expected. The local people may ___ ( a).oppose b).degrade c).lessen d).uphold) the newcomers. Language problems also ___ ( a).support b).deal c).engage d).contribute) to their feeling of loneliness and insecurity.