This is not the thirtieth floor. -
Yesterday he had his sixth exam. -
This is her fourteenth letter. -
It's my first week here. -
James is her second husband. -
She travels alone for the second time. -
She bought the fifty-fifth dress. -
You tell her this for the second time! -
It's his forty-fifth birthday. -
It's your sixth hour here. -
This is the twenty-fifth time I come here. -
Mark is his fourth son. -
This is not the eighth floor. -
May is the fifth month of the year. -
He took the twenty-third place. -
He watched the first film. -
It's her second day here. -
I finished my first book! -
Is this her seventh time in London? -
Do you like the twelfth video? -