（二）听句子，选择适当的答语。每个句子仅读一遍。
6. A. Yes, I do. B. It helps me a lot.
C. By joining an English club.
7. A. Yes, I did. B. No, I haven’t.
C. I have learned English by watching videos.
8. A. Good idea. B. It’s terrible.
C. Yes, I have.
9. A. Yes, I often listen to tapes.
B. Sure.
C. Never mind.
