首字母填空。

    There were three old teachers at the railway s____. They were talking happily. The train arrived, but they didn't notice. Then the conductor(列车长) shouted, “G____  on the train and take the seats, please”

    The teachers heard the conductor and rushed for the train. T____ of them got on the train b____ it moved. The third one didn't get on the t____. It was Mr. Green. He looked worried.  One of his students was at the station. He t____ to comfort(安慰) the teacher. It wasn't really b____, sir,” said the student. “Two out of three c____ the train. That's quite good, you know.”   “I know, “the teacher said, “But it was m____ train. My friends only came to s____ goodbye to me”