I repeat, there are many more and in fact I have already written me. On the other hand, something you should bear in mind is that the multiple-choice test is a test of recognition, that is, where you have to recognize the answer, so you should not afford to get a reason for your exam oppositions. Therefore, the questions that you produce should be short and the answers you give too. Is an art to study questions competitions or anything. To learn more about the study of competitions, follow my contributions in War.