Answer:
1. My room is similar to my sister's room.
2. Our house is smaller than other's in our street
3. This house is not cheap for us.
4. The dishes are dirty, so I need to wash them again.
5. Our new school isn't close to our old house.
6. The streets around here aren't less busy than where we live.
7. My bed is the most comfortable in our house.
8. The bathroom is not as warm as other rooms in the house.
Explanation:
Some of these I didn't understand, but I hoped I helped you a bit. :)