VI. Fill each blank with one suitable word.

Cities have always attracted people from the countryside. They offer wider …1… for employment. They also provide a …2… range of goods and services - shops, schools, hospitals- …3… a generally more exciting environment …4… the sleepy village. However, cities have also been the …5… of crime and poverty. But the attraction …6… always remained and the movement, …7… large cities is now stronger than …8.... One result …9… industrialization has been the vast …10… in urban populations. By 1990, 40% of the world’s …11… lived in cities, and in the developed …12… the figure was generally well …13… half. This came about partly …14… mechanized farming methods need only a …15… part of the workforce to supply the …16… population. Another reason was the growth …17… industry which was located in the …18… and employed huge numbers of people. …19… a result, cities are becoming bigger and …20… crowded.