She bought the flat on the thirtieth floor. -
"O" is the fifteenth letter of the alphabet. -
He finished his eleventh book. -
This is not the eighth floor. -
Her shop is the third to the left. -
Yesterday was her seventy-third birthday. -
I hear this for the third time. -
This is the thirty-first floor. -
My brother bought the third car. -
You tell me this for the tenth time! -
You tell her this for the second time! -
November is the eleventh month of the year. -
He took the twenty-third place. -
It's our fifth year here. -
This is the twenty-fifth time I come here. -
This is my second chance. -
Do you like the twelfth video? -
This is the fiftieth floor. -
I finished my first book! -
It's the seventh day of my holiday. -