Basic vocabulary. Simple to complete, they just need to match one column with the other; there are 20 words to match. Doesn't require much time. After completing the practice, you can ask them to build new sentences, so they don’t forget them easily. The key is: 10, 5, 7, 12, 2, 11, 8, 6, 13, 3, 14, 4, 19, 1, 17, 18, 9, 20, 15, 16.