Here are the best answers to complete the conversations:

1. A: Thanks for the book. It’s very interesting.
B: **b. I’m glad you enjoy it.**

2. A: I can take you around this ancient village if you like.
B: **a. Thank you. I’d love to.**

3. A: **b. Would you mind using** your cell phone for a moment?
B: Sure, no problem. Here you are.

4. A: **a. Do you have any problems with your history project?**
B: No problem.

5. A: May I help you with anything?
B: **b. Yes, please. I’d like to know more about this place.**