This is my first pet. -
He lives on the eightieth floor. -
This is the fiftieth floor. -
Look at the second girl. -
It's my fiftieth birthday. -
Is Saturday the sixth day of the week? -
Is this your twentieth time in India? -
I read the fourth book. -
He took the twenty-third place. -
Is this the eightieth floor? -
John is my first love. -
Mary is his first love. -
He doesn't have the fourth lesson today. -
I give you the third chance. -
She took the thirty-sixth place. -
I live on the forty-eighth floor. -
This is my tenth car. -
I finished my first book! -
He lived in the eighteenth century. -
Is this the sixtieth floor? -