The worksheet contains situations like “You’ve bought a dog.” Each student gets a situation and doesn’t show it to the others. The task is to make a riddle using the phrases “I used to…”, “I didn’t use to…”, “I’m getting used to…” (e.g. I used to be bored. I didn’t use to go out a lot. I’m getting used to waking up earlier.) for the others to guess what has changed in the S' life. Ss quess the answer by asking questions in present perfect (e.g. Have you stated going to the gym? etc.)