Listen to the talk again and answer the questions. Use no more than THREE words and/ or a number.
Matching exercise
Match the items on the right to the items on the left.
What was the percentage of the world's urban population in 1950?
By which year is it expected that about 70% of the world's population will live in cities?
What are good schools and modern hospitals examples of?
Apart from housing, what is more expensive in cities?
About 30 %/ thirty percent
By 2050
(City’s) better facilities
Goods and services