This is the fiftieth floor. -
He goes to the doctor for the third time. -
Do you see the second person to the left? -
Is this your fifteenth time in Paris? -
I live on the forty-eighth floor. -
She goes to the dentist for the seventh time. -
This is not the eighth floor. -
December is the twelfth month of the year. -
Is this her seventh time in London? -
I read the fourth book. -
It's his forty-fifth birthday. -
She bought the fifty-fifth dress. -
You go to Italy on the fourteenth of July. -
This is the ninety-ninth problem for me. -
This is her fourteenth letter. -
I wrote my sixth song. -
It's their fourth week here. -
John is my first love. -
This is his thirteenth message. -
This is my first pet. -