高一英语短文改错.帮帮忙!

高一英语短文改错.帮帮忙!
David had a stomachache on one morning.When he came to breakfast,he was crying .His mother asked why he was cried.David said his stomach was hurt. It was because he had eaten too much green apples the day before. She told him to go to Dr Scott's,he would give him some medicine .
David got back to Dr Scott's office at nine o'clock.He found four people sit in the waiting-room.He has to wait for his turn .He didn't see the doctor since ten o'clock.When at last he sat down in the doctor's room,the doctor asked him what was the matter with him.
一共有10个错误！！！