听对话,选择正确答案。 1.How much is the backpack? A. $5. B. $13. C.$18. 2.How old is Andy? . A.We don’t know. B.15 C.16 3.Whose pencil case is blue? A. Miss Gao’s. B.Du Hui’s. C. Lily’s. 4. When is Gina’s birthday? A. August 12th B. August 14th C. August 16th 5.Who is a P. E teacher? A. Simon. B. Sally. C. Sally’s mother