关于water use的，有pie chart也有bar chart
pie chart是distribution of world's water，pie 1 是all water, pie 2 是 fresh water
bar chart是egypt, Saudi Arabia, canada三个国家的domestic, industry, agriculture的用水量
TASK2 是关于CRIME的
是说一些国家prison是most common solution of the problem of crime
但a more effective solution is to provide better education防止people become criminals.
to what extent do you agree or disagree.
