1. There is a post office in the town.
-> There are some post offices in the town
2. There is a tree to the right of the house
-> There are some trees to the right of the house
3. There is a factory in the city
-> There are some factories in the city
4. There is a bookstore in the neighborhood
-> There are some bookstores in the neighborhood
5. There is a drugstore opposite th hospital
-> There are some drugstrores opposite th hospital
6. There is a park near my house
-> There are some parks near my house