Sherry,
Sherry Liao 寫:The Food and Agriculture Organization of the United Nations (FAO) issued an alarming report in 2008, in which it warned that, the poor around the world were facing a worsening food crisis.
"in which it warned that" seems to be wordy. How about "which warned that ..."? BTW, comma cannot be added after THAT.
Sherry Liao 寫:To take an overall view of the events happened in 2008, what has been revealed by the report might not be serious enough.
Not sure if mine is better, but here is my revision.
Given what happened in 2008, the report might underestimate the severity of global food crisis.
Sherry Liao 寫:Food Riots broke out in Mexico, Egypt, Haiti and Somalia; in Australia, the worst drought in 100 years has made wheat produce drop by 60 percentages; the average price of food in the world has risen by 75 percentages of the price in 2000.
Since all of them took place in the past, the tense need to be past tense.