Les niveaux de connaissance en langue ont été classés et définis par le Conseil de l'Europe. Cette norme européenne, appelée cadre européen commun de référence, est acceptée et reconnue dans tous les pays de l'Union Européenne. Elle détermine précisément les compétences que doit posséder l'apprenant pour communiquer dans certains contextes.
In many parts of the world, especially in Europe, the number thirteen is very unlucky. Many people believe that this is because, according to the Bible, there were thirteen people present at the Last Supper. However, the superstition is older than that event, and the ancient Romans disliked thirteen as much as we do today.
The thirteenth of the month is not a good day to start anything new or to travel. But it is much worse if the thirteenth is on a Friday. Many people believe that the unluckiest day of all is Friday, May 13th. But nobody really knows where this superstition came from.