How to get your joker:
1.) Write the complete sentences into your exercise book and fill in the correct verb forms.
2.) Show your teacher the complete exercises. He'll give you the answers.
3.) Correct your exercises at home. Put ticks or write down the correct answer. Use a different color for your corrected answers!
4.) Show your teacher your corrected exercise (with the ticks!) and he'll give you your "joker".
