根据句意及首字母提示完成句子。 1. — What's your t _____ number? — It's (010)5987463. 2. Mr. Lee is our teacher. He isn't young. His hair is g _____. 3. — Is  that skirt yours? — Yes, it's m _____. 4. Please help me f_____ a knife. 5. Doudou is twelve. He is a high school s_____ in Anhui. 6. Kate and I are in the same class. She is my c_____ . 7. — Look! Here is a dress. W_____ dress is this? — It's hers. 8. — What is your sister's n_____ ? — She is Gao Hua. 9. — Are those cars from Canada? — No, they aren't. They are from J_____ . 10. — What color is this skirt? — It's o_____ .