Translate the following English sentence to French:
"Affairs and the Internal Market. I would particularly like to express my own gratitude to Mr Langen for his report and for the great clarity with which, in writing and in his presentation today, he has brought to our attention what this is all about."
Je voudrais adresser mes remerciements personnels à M. Langen pour son rapport et pour la clarté de son style et de son exposé oral d' aujourd' hui, qui nous a permis de mesurer toute l' ampleur de cette question.