Mark is his fourth son. -
She bought the flat on the thirtieth floor. -
He finished his eleventh book. -
Her shop is the third to the left. -
This is my second chance. -
My brother bought the third car. -
You tell me this for the tenth time! -
Is this your fifteenth time in Paris? -
Thursday is the fourth day of the week. -
He doesn't like my second wife. -
This king lived in the twelfth century. -
She took the thirty-sixth place. -
Is "T" the twentieth letter of the alphabet? -
What is the third day of the week? -
It's my fiftieth birthday. -
Is this the sixtieth floor? -
I go to the university on the sixth of September. -
Is this her seventh time in London? -
James is her second husband. -
I finished my first book! -