( ) 1. A. I went skating. B. She went to Beijing. C. I went to the library.( ) 2. A. I read a book. B. Yes, I did. C. I went by plane.( ) 3. A. Yes, I do. B. No, I didn't. C. Yes, I did. ( ) 4. A. He's 50 kg. B. She's 170 cm tall. C. I'm 160 cm tall.( ) 5. A. No, she didn't. B. Yes, she does. C. No, she isn't.