Exercise: "Time Travel with Modal Verbs" Instructions: Use the appropriate modal verb (must, can, should, might, etc.) or their past form to complete each sentence. ==== 1. You ___ not enter without a pass. (necessity) 2. He ___ swim when he was 5 years old. (ability in the past) 3. You ___ eat so many candies; it's not good for your teeth. (advice) 4. I’m not sure where she is; she ___ be in the garden. (possibility) 5. When I was younger, I ___ stay up late without feeling tired the next day. (ability in the past) 6. She ___ forgotten to take her keys; her door is still locked. (probability in the past) 7. You ___ take an umbrella; it looks like it's going to rain. (recommendation) 8. Students ___ wear a uniform in this school. (obligation) 9. Last year, she ___ go to France for her project, but she chose Italy instead. (possibility in the past) 10. We ___ be late if we don't hurry! (probability in the future) ===== After you have chosen the appropriate modal verb for each sentence, check yourself with the answers in the comments.