Here's what we're going to do
1. You write ten taboo questions. You can ask anything you want, no matter how awkward it is, as long as it's in the present simple or the present continuous. More advanced students can also use the present perfect: Have you ever.....
BUT
2. You don't know whether you're going to be asking or answering the questions.
3. You work in pairs, but not with the person you're sitting next to.
4. One of you finds a dice-app. 1, 2 or 3 on the dice? You ask the question and the other person has to answer it. 4, 5, or 6? You read out one of your questions and you answer it yourself.
5. Done? Get started on the homework. Homework is: look through everything you need to study for the test (words of unit 4, grammar of units 3 and 4) so you can ask questions and take the diagnostic test next week.