It was unusually quiet in the emergency room (急救室)  on December 25. I was the nurse on duty. A woman and four small children     up at my desk.
The mother said they were all sick. But when I asked for more information about their illnesses. none of them could tell me     .
I was sure something was wrong, but I didn't say anything.
I explained that it might be a few minutes      the doctor could see me. She replied, "Take your time. It's warm here. "
I looked down and checked the form that she had finished. N0   they were homeless. The waiting room was warm. Something was clear in  mind.  The family were gathering by the Christmas tree. The      one was pointing at the TV and talking about something to his mother. The oldest one was   at an ornament (装饰物 ) on the Christmas tree.
I entered my office and took out the    that I prepared for my children. Some food drinks I collected     other offices were also put on the table next to the Christmas tree. I asked the family to get together, eating, singing, dancing and sharing the gifts. We all had a warm and happy Christmas.
   , as the family left, the little 4-year-old boy gave me a hug and whispered(低声的 说)," Thanks for being our angel（天使）today ! "