根据句意和首字母提示填空，完成下列句子。 1. His bike is broken, he has to walk to school i_______ of riding. 2. Little Tom is t_______ of speaking aloud, he's shy. 3. When we heard the bad news, we couldn't help s_______ laughing. 4. A spider is a kind of i_______. 5. He became very i_______ in music at the age of five. 6. Annie used to be quiet, but now she's very o_______. 7. I didn't go to bed u_______ nine yesterday evening. 8. Lucy used to have short hair, but now her hair is l_______ than before. 9. Sorry, I can't join you. I h_______ to study for a test. 10. She is u_______ to the life here. 11. Don't w_______ about things so much. Take it easy. 12. It seemed that she has c_______ a lot. She's more outgoing. 13. He's f_______ to us. We're very thankful. 14. Don't you r_______ me, I'm John, your old classmate. 15. The teacher looks so s_______. What happened? 16.  He still argues, t_______ he knows he's wrong. 17.  They can't a_______ to buy a new TV set.