Tony and An are best friends. Last week, Tony had the flu and had to stay home from school. While Tony was recovering, An caught chickenpox and couldn't play outside. On Monday, Tony also had a toothache and went to the dentist. An, on the other hand, had a stomachache after eating too much candy. By Thursday, Tony had a headache and stayed in bed all day. On Friday, An had an earache, so her mother took her to see the doctor. It was a tough week for both of them, but they are feeling better now.
Question: An had a toothache on Monday.
