用所给单词的适当形式填空。
beside，normal，bookstore，past，two
1. The reading room for children is on the ________ floor.
2. Go ________ the library and then you can see the supermarket.
3. Sally chose a room ________ mine.
4. We can find a lot of ________ in our city.
5. I ________ go to bed early，but I stayed up last night.