http://www.flo-joe.co.uk/cae/students/tests/ocltst3.htm
http://www.flo-joe.co.uk/cae/students/tests/wfts2.htm
http://www.flo-joe.co.uk/cae/students/tests/strtest2.htm
http://www.esl-lounge.com/student/advanced/cae-050-key-word-transformations-exercise.php
http://www.esl-lounge.com/student/advanced/cae-051-key-word-transformations-exercise.php
http://www.englishrevealed.co.uk/CAE/Part2/cae_open_cloze_2.php
http://www.hibernia-institute.cz/on_line_testy/cae/cae_use_part2.htm
http://www.hibernia-institute.cz/on_line_testy/cae/cae_use_part3.htm