Use the collocations in 57.1 to rewrite the underlined parts of the sentences.

1. Asia underwent a dramatic increase in the population in the latter part of the 20th century.
2. The crop had been subject to having its genes altered .
3. Since the advent of the internet, the world has become one single community .
4. Times when the traffic cannot move can cost the economy millions of pounds.
5. Scientists now understand how the human genes are composed .