题目内容：

阅读下面短文，根据短文内容及首字母提示，在空白处填入一个适当的单词。

A young woman in her twenties was sitting on the train, next to her mother. They both looked tired but excited.

The young woman was looking out f1. the train’s window. Suddenly, she shouted, “Mom, look, the trees are behind us!” Her voice was so  l2. that everyone on the train heard.

Mom smiled. B3. a young couple who were sitting nearby looked at the young woman’s childish(孩子气的) behavior with pity. “Poor girl. There must be something wrong with her m4..” they thought.

A few minutes later, the young woman shouted a5.. “Mom, look! The clouds are running with us!” Mom smiled again. And she seemed very happy with her daughter’s w 6._ that she said just now.

Finally, the couple couldn’t help asking the old woman, “Sorry if we offend（冒犯）you. But why don’t you t7. your daughter to a good doctor?”

The old woman smiled and said, “Actually, we have just come from a hospital.”

“Then you should go to a b_8. one. Because it seems that your daughter’s situation (状况) hasn’t improved.” said one of them. They felt so sad for the old woman.

“No, in fact I’m very happy with the treatment(治疗).” said the mother, “My daughter was blind from birth. Today, she is seeing the world for the  f9.time.”

Every single person has a story. Don’t judge（判断）people before you knowt10.well. The truth might surprise you.