Working towards the exam

You will have to pass the British Institute Upper Intermediate test. The following .pdf shows the required skills:
http://www.britishcouncil.org/ps-learn-english-upper-intermediate-list-blue-gaza.pdf

These are guided B2 exercises:
http://www.teachya.com/reading/reading_exercises/upper_intermediate.php

[skip Amelia Earhart, the page does not exist]

Just B2 exercises:
http://www.teachya.com/my_level/upper_intermediate.php

on the phone:
http://www.teachya.com/speaking/upper_intermediate/telephone.php

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"Pulse of the Planet" might be an interesting way to learn new words:
http://www.teachya.com/listening/listen_and_read/advanced.php


and here we can find a series of topics/articles to read, listen to, and speak about:
http://learnenglish.britishcouncil.org/en/magazine