At present the "CTU" ("Chercher? Trouver! Utiliser..." – Search, Find, Use) search engine for teachers and learners references 7000 exercises according to various search methods and criteria.This project consists in:1) referencing these 7000 exercises in FR, EN, DE, and BG according to the 30 competences in the Common European Framework of Reference for Languages (European Language Portfolio);2) r ...