M: Hello. I need a room for two days from June 3 to 4. Do you have any spare room? W: Sorry, sir. We are fully booked on that day. But we do have rooms on June 5 and 6. M: OK. I book a single room for the two days., Question: When will the man check in? (A) On June 4. (B) On June 5. (C) On June 6.
(B) On June 5.