Choose the sentence that best combines each pair of sentences given.

Asia is home to 50 per cent of the world's urban population. At the same time, Europe is home to 14 per cent of the world's urban population.

The demand for labor force declined.

The demand for labor force increased.

The demand for labor force reduced.

The demand for labor force remained stable.

The price decreased by 280 in 1995 before stabilizing for the next 3 years.

The price decreased for 280 in 1995 before leveling off for the next 3 years.

The price increased by 280 in 1995 before leveling off for the next 3 years.

The price increased for 280 in 1995 before stabilizing for the next 3 years.

The rapid urbanization is the cause of many serious problems such as the growth of slums.

The rapid urbanization is consequent of many serious problems like the growth of slums.

The rapid urbanization is created by many serious problems such as the growth of slums.

The rapid urbanization is resulted by many serious problems like the growth of slums.

Although increasing urbanization has led to problems, but cities are centers of civilization and culture.

Despite increasing urbanization has led to problems, but cities are centers of civilization and culture.

In spite of increasing urbanization has led to problems, yet cities are centers of civilization and culture.

Though increasing urbanization has led to problems, cities are centers of civilization and culture.

The industrial production fell quickly in ten years from 1990 to 2000.

The industrial production fell steadily in ten years from 1990 to 2000.

The industrial production rose sharply in ten years from 1990 to 2000.

The industrial production rose slightly in ten years from 1990 to 2000.

If public transport is improved, traffic congestion in urban areas can be reduced.

Traffic congestion in urban areas can be reduced although public transport is improved.

Traffic congestion in urban areas can be reduced despite public transport is improved.

If public transport is improved, traffic congestion in urban areas cannot be reduced.