( ) 1. A. He is a good student. B. Yes, he has. C. He has gone to Shanghai. ( ) 2. A. At 4:00. B. To Mount Tai. C. For ten years. ( ) 3. A. Yes, I did. B. Yes, I have. C. No, I don't.( ) 4. A. over six thousand. B. over six million. C. over six billion. ( ) 5. A. Not at all. B. Good idea. C. It's a wonderful place. ( ) 6. A. Because my mother was ill. B. Because I didn't finish my composition. C. Because I was late.