What does the exercise labeled '*7.' ask the students to do?

The exercise labeled '*7.' asks the students to 'Wir wiederholen.' which translates to 'We repeat.' or 'Let's repeat.' It then gives an example in sub-point 'a)' which is 'nehmen wie lesen, sprechen, sehen, essen e → ie/i'. This suggests a grammar exercise focusing on verb conjugations or vowel changes.