Since 2013/09, I discovered the existence of a free great tool (Auto-Multiple Choice) that every teacher should know. It allows you to make quizzes very quickly with automatic marking. Since I investigate it, some of my colleagues are using it (S. Lavirotte, D. Lingrand, G. Rey) and we share a lot of experiences on it. Congratulations to developpers of this software. A good french description is also avalaible here.