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1 They were having used to have dinner when I phoned / was phoning them.

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 / used to arrive.

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 was happening.

9 We didn't go didn't use to go abroad last year.

10 They didn't use to have / weren't having a car when I knew was knowing them.