11) When I __________ (arrive), the school bus __________ (text). 12) Ilya __________ (break) his leg while he __________ (skateboard). 13) He __________ (listen) to music while he __________ (cook) breakfast. 14) My sister __________ (drive) at 120 km/h when a policeman __________ (stop) her.

Решение:

1. When I arrived, the school bus was texting.
2. Ilya broke his leg while he was skateboarding.
3. He was listening to music while he was cooking breakfast.
4. My sister was driving at 120 km/h when a policeman stopped her.

Ответ: arrived, was texting; broke, was skateboarding; was listening, was cooking; was driving, stopped.