This is the thirty-first floor. -
This is our ninth dancing class. -
Is this the eightieth floor? -
I have the third lesson today. -
It's my fiftieth birthday. -
He cooks this cake for the ninth time. -
Her shop is the third to the left. -
He goes to the doctor for the third time. -
We go to New York on the sixteenth of January -
It's our fifth year here. -
He travels alone for the first time. -
He doesn't like my second wife. -
"O" is the fifteenth letter of the alphabet. -
He lives on the eightieth floor. -
It's her second day here. -
She goes to the dentist for the seventh time. -
Tomorrow is her sixtieth birthday. -
You tell her this for the second time! -
Yesterday was her seventy-third birthday. -
He bought the sixty-sixth shirt. -