Complete the interrogative sentences in past continuous with correct words.

Choose the correct option.

They were talking about the project for some time, [wasn't they|was they|weren't they]?

[Where were you going|Where you were going|You where were doing] when you called you?

[They were sleeping|Were they sleeping|Were sleeping they] when the alarm went off?

[Was he watching|He was watching|Was watching he] TV or listening to music when you walked in?