I. Listen and choose the best answer.听句子，选择最佳答语.（5分）
( )1.A.Yes, I'd love to. B. That's too bad. C. Sorry to hear that.
( )2.A.Sure, go ahead. B. No, thanks. C. Yes, she did.
( )3.A.You're right. B. You'd better not. C. It's terrible.
( )4.A.The same to you. B. Yes, I am. C. Why not?
( )5.A.Meat. B. Grass. C. Bamboo.
