Verb tenses revision: rules
If you are 100% sure you know all the verb tenses and can use them with 95% accuracy, you do not have to participate in this activity.
You work quietly. I do not want to hear you. I do not want to have to pay attention to what you are doing. If I do hear you, if you do interrupt the lesson, I no longer want you in my classroom today.
Make sure to move away from people who might distract you.