Selecciona la opción que complete correctamente la oración, aplicando las reglas de Past Continuous, When y While.
1. I _____ a movie when the power _____ out.
2. While my mom _____ dinner, my sister _____ a book.
3. She was jogging _____ she heard a strange noise.
4. _____ they were playing football, it started raining heavily.
5. The fire alarm _____ when the students _____ the test.