Đề IELTS Academic Task 1 biểu đồ tròn

The three pie charts below show the changes in annual spending by a particular UK school in 1981, 1991 and 2001.

Summarise the information by selecting and reporting the main features, and make comparisons where relevant.

The pie charts below show units of electricity production by fuel source in Australia and France in 1980 and 2000.

Summarise the information by selecting and reporting the main features, and make comparisons where relevant.

The pie charts below show the online shopping sales for retail sectors in New Zealand in 2003 and 2013.

Summarise the information by selecting and reporting the main features, and make comparisons where relevant.