At last...

Choose one of them:
1. your experience learning English at the university/a general reflection
2. the use of technologies within the different subjects you've studied this year (review/opinion)
3. Chile 2010: What are your views on Chile's bicentennial year?

Essay structure:
-introduction (about 80 words)
-body(2 or 3 paragraphs about 200 words)
-conclusion (about 70 words)

See you!

Tips...

More tips on how to write a simple essay...
http:www.ehow.com/how_4562285_write-simple-fiveparagraph-essay.html

Some tips on how to use transitional phrases...
http:www.cz-training.com/toefl/transitionalphrases01.html

Good luck!