《儿童权利公约》确立的四大原则是儿童最大利益、尊重儿童观点、尊重儿童尊严和（）。A.

用方框中所给词语的适当形式填空，每词限用一次。

open, story, gift, hear, sing, invite, wonderful, rich, at once, wake up

You may know the song Happy Birthday very well. But do you know who 小题1: it first? It was written by a poor American girl. And now she has become a very  小题2: woman.
When she was a child, once she小题3:  to her friend’s birthday party. She was pleased but also sad because she didn’t have enough money to buy a gift for him. Later that night she was in bed, worrying about the gift when the door  小题4:  and in came her grandma. “What happened?” her grandma asked. Hearing the girl’s  小题5: , she said, “Don’t worry. I think I can help you. How about singing a song? Happy birthday to …” What a beautiful song! She sang and sang. Suddenly she  小题6:  . It was a dream! She decided to write it down   小题7:  and sing it to her friend at the party.
When she sang the song at the party the next day, her friend was very happy . “How  小题8:   you sing! It is the most beautiful song that I have ever  小题9: before! Thank you for giving me the special  小题10: !” he said. And they learnt to sing it together. Later the girl became well-known in Americ