补全对话(填入适当的句子)。 A: 1 B: Yes,I can't find my twin daughters. A: Don't worry. We can help you. 2 B: They are ten years old. A: 3 B: They are thin with short, black hair. One is taller than the other. A: 4 B: They both wear white T-shirts and blue skirts. A: OK! Please write down your telephone number. We'll call you as soon as we have any news. B: 5 A: You're welcome.