I supposed to meet you at your office on Monday ten o'clock. However, I really faced some emergency issues that need to be dealt with immediately, and that was why I missed the appointment. At time of 9:30 on Monday, I planed to go to your office, but then I realized my mom wasn't very comfortable, normally at 9:30, she waked up already, but today was an exception. I went to her room and I found she was really sick, she had a high fever, she didn't even have conscious. Due to my father wasn't here, I took my mom to the hospital. Now, she is in a good physical condition, so I apologize that I miss the appointment.