Where can you find the meeting rooms in the building? On______. [originaltext]

Hello, everyone. Welcome to our library. All of our books, reference materials and other resources are in this building. (16)On the first floor, we have meeting rooms. (17)On the second floor, you will find current magazines and newspapers. Our science and engineering sections can be found on the third floor. You can also find back issues of magazines and journals older than 6 months on this floor. (18) The group study rooms and movie collections are located on the fourth floor. (19) Each of you can borrow 15 books for two months. You can renew up to two times. There is a 50-cents-a-day late fee for overdue books up to a maximum of $15. (20) Our library is open on weekdays, from 8:00 a.m. to 10:00 p.m. , and on Saturdays and Sundays, from 9:00 a.m. to8:30p.m.