A: Hello Jim. I didn't see you at school yesterday.B: That's right. I didn't go to school.A: Why not?B: Well, in the morning, while I was having breakfast, I suddenly felt really ill. I had a bad stomach ache. A: Oh dear. What happened then?B: Well, I went back to my bedroom. And while I was sitting on my bed, I got worse. So my mum phoned for an ambulance.A: No way! An ambulance?B: Yes. But, while they were taking me to hospital, the ambulance crashed.A: What?B: That's right. Nobody was hurt, but we had to wait for another ambulance. And while we were waiting my stomach ache stopped.A: You're kidding.B: No, it's true. So I was walking back home and I started to get ready for school. But while I was getting dressed, I looked at the clock.A: And?B: And it was already 10 o'clock - so I decided to stay at home anyway!