Yesterday was the strangest day at school. Everybody 1. (do) different things. My teacher Robert 2. (not give) classes, he 3. (take) classes. My classmates 4. (not talk) and they 5. (not use) their cellphones either, they 6. (pay) attention. The principal 7. (not work) at his office, he 8. (play) soccer in the playground. I 9. (look) at everybody while they 10. (do) unusual things but I didn't believe my eyes!