task 1
The bar chart shows the percentage of the total world population in 4 countries in 1950 and 2003, and projections for 2050.
Summarise the information by selecting and reporting the main features, and make comparisons where relevant.
task 2
Some people believe that the advantages of studying abroad outweigh the disadvantages, while others argue that the drawbacks are more significant.
Discuss both views and give your opinion.