Apologizing Letter

Dear Chathy I am very sorry I couldn't go to your birth day party last night became on my way to your party, I saw an accident. Mr. Dara, who is my uncle, had an accident near your school. A dog had run into his motorbike. When I arrived, he had crashed down. I must have help him, so I rushed to pull him up. While I was pulling him up, I saw blood on his knees and on his head. I felt it was urgent so I phoned for an ambulance. The ambulance arrived immediately. The nurse examined him and took him to the hospital. His head was injured badly. The doctor said "he has to stay in the hospital for a month" . Last night I stayed with him.