Complete the sentences with the correct form of have to, must, should or would.

Librarian: You look interested in our science-fiction books. You (1) look at these shelves also.
Client: Thank you, but I (2). I’ve already found something interesting.
Librarian: Fine. Next time maybe you (3) be interested in our online catalogue before coming to the library.
Client: Sounds great. What (4) do to use it?
Librarian: You register with our library online, browse the catalogue by topic sections and choose the titles. You (5) reserve more than three books at once. They will be waiting for you here for 24 hours.
Client: Very convenient, thank you. I’ll try it next time