[解析]
I ran back to Gunter and told him the bad news.His face fell,but he quickly recovered and said, "Don't worry,you can get on the bus first and go to conference.You can pay me back when you coma back." With those words,he waved goodbye to me and urged me to go on the bus.As I boarded the bus,I promised him that I would repay him as soon as I returned to Vienna.【高分句型一】His kind gesture had saved me from missing the conference,and I was deeply grateful.(尽管作者没有现金,Gunter还是让作者上了公共汽车,作者承诺会还钱给他)
Four days later,when I was back in Vienna,I called Gunter as promised.He was delighted to hear from me and told me to meet him at the same taxi rank.I brought with me the exact amount money he had charged me plus a little extra as a token of my appreciation.As I handed him the money,he smiled warmly and said, "I was just doing my job.But it's always good to have friends in unexpected places." Just as you can see,a random kindness in a cold night turned out to be a warm encounter.【高分句型二】(四天后,作者联系Gunter,并将钱还给他)