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.