It was a warm and sunny day. Seven-year-old Ga briella put on her best clothes. She would go on a 31 t rip with her family. They went through their village. The villagers said hello to them, but Gabriella could hear 32 because she was deaf. Soon Gabriella 33 Dr. Tang ' s. She put on a hearing aid ( 助 听 器 ) there. When Dr. Tang turned it on, Gabriella was so excited, 34 it was the first time that she heard a sound! Some people think that deaf children are not very smart. However, Dr. Tang doesn ' t 35 . So he works hard to help children in poor places with hearing problems. Gabriella is one of his patients ( 病 人 ). He has helped hundreds of children 36 the world. With Dr. Tang ' s help, many children like Gabriella can go to school with a hearing aid and get a(n) 37 . They are smart and do very well in school. Dr. Tang also helps people learn 38 to take good care of their ears. He knows that one can ' t fully enjoy the beauty of the world 39 hearing any sounds. As for Gabriella, she is experiencing the world in a new 40 . She is so thankful to Dr. Tang. She hopes that other children with hearing problems can get help, too.