Problem: M: We learned the dialogue on Page 40. W: Have you all memorized it? M: Yes, we have. W: All right. Now, go on to Unit 5. Listen carefully to the tape,and then finish the questions. M: Do we have to do them? W: I'm afraid you have to. What was said before this conversation?

A: W: Let's get started. Where were we last class?

Problem: W: Look! Here it is. You left it by the phone. What was said before this conversation?

A: M: I can't find my pen anywhere. It was on the desk with my book a moment ago.

Problem: M: Yeah. She injured her spine in a fall and a doctor told her to lie flat on her back for a month so it can mend. What was said before this conversation?

A: W: Did you hear that Anna needs to stay in bed for 4 weeks?

Problem: M: I didn't want to miss the football game. Well, I'm not a classical music fan anyway. What was said before this conversation?

A:
W: It's a pity you missed the concert yesterday evening. It was wonderful!