It's your sixth hour here. -
It's my first week here. -
November is the eleventh month of the year. -
Is "T" the twentieth letter of the alphabet? -
She bought the fifty-fifth dress. -
This is the fiftieth floor. -
Thursday is the fourth day of the week. -
He bought the sixty-sixth shirt. -
He took the twenty-third place. -
Yesterday was her seventy-third birthday. -
August is the eighth month of the year. -
This is his thirteenth message. -
Is this her seventh time in London? -
Mark is his fourth son. -
He lived in the eighteenth century. -
This is my first pet. -
He watched the first film. -
Tomorrow is the twenty-ninth of February! -
I finished my first book! -
Do you like my third appartment? -