This is the thirty-first floor. -
Jane is his first wife. -
She bought the flat on the thirtieth floor. -
What is the twenty-second letter of the alphabet? -
This is the thirty-third time you tell me this story. -
She travels alone for the second time. -
Read the seventh part of the book. -
November is the eleventh month of the year. -
It's the seventh day of my holiday. -
You go to Italy on the fourteenth of July. -
Is "T" the twentieth letter of the alphabet? -
This is the ninety-ninth problem for me. -
This is not the eighth floor. -
She goes to the dentist for the seventh time. -
It's my fiftieth birthday. -
She took the thirty-sixth place. -
December is the twelfth month of the year. -
Tomorrow is the twenty-ninth of February! -
It's their fourth week here. -
He finished his eleventh book. -