听录音，选出正确的答句，将其序号填入题前括号里。( ) 1. A. It's thirty.

B. It's thirty yuan.

C. They're thirty yuan.

( ) 2. A. Yes, I do.

B. Yes, I can.

C. Yes, I am.

( ) 3. A. No, it isn't.

B. No, they are.

C. No, they aren't.

试题答案

1-3: B A C