根据所给词的适当形式填空：
（1）_______（be）there a ruler and two pens on the desk ?
No, there ________.（be）
（2）_______ (be) there ______(some) music rooms in our school ?
No, there _________.（be）
（3）_______(be) there any juice in the glass ?
Yes, there ________.
（4）How many _______(classroom)are there in it?
（5）The library is on __________ (one) floor.