Kate: Have you got the book?
Steven: No, I didn't
Victor: it's impossible to get it
Mary: ok, so it's not only me
Mary: I thought I'm just clumsy
Kate: but how are we going to pass the exam without his stupid book
Steven: do you think there will be only questions from the book?
Kate: everybody says so
Kate: his previous students
Steven: why did I take this stupid course?
Victor: maybe we should write him that we have problems
Victor: maybe he could send a pdf?
Kate: lol, I think he wants to earn money
Kate: he wants sell books, not send pdfs
Steven: :(
Kate, Victor, Mary and Steven can't buy the book for the exam anywhere. Since a professor wants to earn money on that book, he'll probably not send them a pdf version.