请读句子，选择合适的形容词填空，每词只能填一遍。 tall, short, long, happy, beautiful, heavy, big, small, sad, old, fast 1. Today is my birthday. I'm very ________________. 2. This box is too ________________. I can't carry it. 3. My bag is ________________, but I like it very much. 4. The boy lost his money. He was ________________. 5. Yao Ming is very ________________. 6. Look! The plane is so ________________. 7. My mother is ________________. I love my mother. 8. The elephant's nose is so ________________. 9. The star looks ________________, but it is ________________. 10. The rabbit's tail is ________________.