精选优质文档-倾情为你奉上完型填空 (一)A young woman in her 20s was sitting on the train, next to her mother. They both looked tired _1_ excited.The young woman was looking out from the trains window. Suddenly, she shouted, “Mom, look, the trees are behind us!” Her voice was so _2_ that everyone on the train heard.Mom smiled. But a young couple sitting nearby _3_ the young womans childish behavior (行为) with pity. “Poor young woman. There must be something wrong with her _4_,” they though