I have the third lesson today. -
This is my first pet. -
This is the thirty-first floor. -
John is my first love. -
December is the twelfth month of the year. -
Tomorrow is the twenty-ninth of February! -
It's his forty-fifth birthday. -
It's my first week here. -
I read the fourth book. -
He finished his eleventh book. -
This is the fiftieth floor. -
This is her fourteenth letter. -
Kate is her third daughter. -
Look at the second girl. -
I finished my first book! -
Is this her seventh time in London? -
Is "T" the twentieth letter of the alphabet? -
It's your sixth hour here. -
Jane is his first wife. -
This is the twenty-fifth time I come here. -