1. He was playing the guitar when his mom come home. (play)
2. Martin was copying his classmate homework when the teacher saw him. (copy)
3. My sister was crying when she come home from school. (cry)
4. A bad boy was bullying a younger student after school. (bully)
5. They was having dinner at home last night. (have)
6. My mom was practicing the violin at nine last night. (practice)
7. The students were fighting when the principal arrived. (fight)
8. They were using their cell phones in class yesterday. (use)
9. He spraing graffiti when the teacher saw him. (spray)
10. John was cheating on the exam. (cheat)
