Respuesta :
1. They were having ✓
2. When we were young our parents took / used to take us to the beach every weekend. ✓
3. She was still having / still had breakfast when the taxi arrived ✓
4. Did your brother teach | Was your brother teaching you to play the guitar when you were young? ✓
5. When I was younger I used to love | was loving helping my mum cook. ✓
6. He had used to have a beard when he was / was being at university. ✓
7. We used to spend | were spending all day playing together when we were children. ✓
8. He was using / used his mobile when the accident happened. ✓
9. We didn't go | didn't use to go abroad last year. ✓
10. They didn't use to have ✓
2. When we were young our parents took / used to take us to the beach every weekend. ✓
3. She was still having / still had breakfast when the taxi arrived ✓
4. Did your brother teach | Was your brother teaching you to play the guitar when you were young? ✓
5. When I was younger I used to love | was loving helping my mum cook. ✓
6. He had used to have a beard when he was / was being at university. ✓
7. We used to spend | were spending all day playing together when we were children. ✓
8. He was using / used his mobile when the accident happened. ✓
9. We didn't go | didn't use to go abroad last year. ✓
10. They didn't use to have ✓