This is an official Cambridge examination. Source
Part 2 Speaking exercise. Candidate B
The examiner will stop the interaction after 4 or 5 questions have been asked and answered with the first candidate. A different set of prompt cards is then given out, so that candidate A has the opportunity to ask questions and Candidate B to answer them.
In the example, the questions are about a library.
Candidate B. here is some informtation about a bookshop.
Candidate A. you don't know anyhting about the bookshop, so ask B some questions about it. Now A, ask B your questions about the bookshop and B, your answer them.
Candidate B- your answers Candidate A- your questions.