Choose the correct option to complete the sentences.

0 A bird was singing / had sung when I woke up this morning.

1 When the ambulance arrived at the hospital, the bleeding had already stopped/ already stopped.

2 When I arrived at the hospital reception, I realised I didn't bring / hadn't brought the necessary documents.

3 When / Until I arrived at the fitness centre, I couldn't train with my normal exercise machine. The previous user had broken it.

4 Were you doing aerobics while / when I rang you?

5 When I came home, my wife was doing / did yoga in the garden.

6 After / Before I had watched the health programme, I decided to change my diet.

7 I wasn't finishing I hadn't finished my muesli, when the waitress tried to take my bowl.

8 Yesterday at 5 p.m., when you called, I wasn't playing/ didn't play football. I was at the shops.