"O" is the fifteenth letter of the alphabet. -
My house is the second to the right. -
What is the twenty-second letter of the alphabet? -
James is her second husband. -
Today is the thirtieth of April. -
Is this the eightieth floor? -
This is my tenth car. -
You tell her this for the second time! -
I live on the forty-eighth floor. -
I have the third lesson today. -
It's the seventh day of my holiday. -
He goes to the doctor for the third time. -
She travels alone for the second time. -
This is my first pet. -
He tries it for the eleventh time. -
I go to the university on the sixth of September. -
Is Saturday the sixth day of the week? -
They come back on the second of August. -
He lived in the eighteenth century. -
Is this your fifteenth time in Paris? -