Hi Mary,
I'm writing to let you know why I didn't go to school yesterday. When you called me on Tuesday, I wasn't feeling very well. It got much worse later - I had stomach flu. I was OK in the morning, but I didn't get much sleep the night before. When my mum came to wake me up, I told her I didn't sleep at all! So she let me stay in bed. Well, I'm feeling better now. Is there any homework for tomorrow?
Beth