From BBC Learning English
It's a shame Marvin has to leave the blog early - but, of course, he had to prioritise. I am sure you will join me in wishing him all the best for his course!
Until the end of the month we will have another blogger whom many of you will know as a previous blogger and one of the most regular commentators. Come back to this page later to find out who it is!
BBC Learning English team
Thanks for all your contributions. This blog has now closed and can no longer accept new comments.