The wall is made of ________.
rock.
The flower pot is made of _________.
concrete
The jar is made of ________.
glass
The house is made of _______.
brick
The house is made of_________.
straw
The table is made of _________.
wood
The clay pot is made of ________.
mud
The key is made of ________.
metal
The can is made of _________.
metal