They... (to not listen) to the teacher.
It... (to rain) very heavily.
I... (to look after) my baby-sister.
I... (sleep) and didn’t know what the time was.
I... (look for) a present from my parents.
1. Why didn’t you go for a walk in the morning as usual? — It raining very heavily.
2. I called you in the afternoon. Why didn’t you answer the phone?
3. Why didn’t they hear about the test?
4. Why didn’t you come to the party on time?
5. Why didn’t you phone me at 4 o’clock?