On September 11, 2001, Omar Eduardo Rivera, a blind computer technician (技术员), was working on the 71st floor of the World Trade Center with his guide dog (name) Dorado. When the hijacked (被劫持的) plane hit the tower, Rivera knew would take him a long time to escape from the building, but he wanted his lovely dog to have a chance (get) out so he set him free in the crowded stairwell. "I thought I was lost forever—the noise and the heat were (terrify) —but I had to give him the chance of escape. So I touched his head, gave him a push and ordered him to go," Rivera said.
The dog (immediate) disappeared into the crowd, but a few (minute) later Rivera felt the dog feeling his legs. Dorado came right back to his side and a co-worker (bring) by him as well. Then Dorado and the selfless co-worker (help) Rivera climb down 70 flights of stairs, took nearly an hour. No sooner had they escaped from the building it fell down completely, and Rivera says he owes his life to his faithful dog.
