The review exercises from previous lessons is an important and integrated part of our courses. This tool is adjusted to your progress, which is why you need to be logged in to access this feature. If you don't have an account, please register in the upper right corner.
Exercises from a specific lesson are generated below. Please respond to those exercises in the same manner that you would answer a normal exercise. After answering each exercise and checking your results, please rate how hard you found the exercises, for the upcomming repetition interval to be optimized.