2. My sister's room has a beautiful piano.
3. The table is between the bed and the window. 
4.My house is behind a big tree.
5.In her house, the dining room is near the living room.

2. There is a beautiful piano in my sister's room.
→ My sister's room has a beautiful piano.
3. The table is to the left of the bed and to the right of the window.
→The table is between the bed and the window.
4. There is a big tree in front of my house.
→ My house is behind a big tree.
5. In her house, the dining room is close to the living room.
In her house, the dining room is near the living room.

#Cửu

2 my sister's room has a beautiful piano.
3 the table is between the bed and the window. 
4 my house is behind a big tree.
5 in her house, the dining room is near the living room.