It's my first week here. -
This is the fiftieth floor. -
She took the thirty-sixth place. -
Mark is his fourth son. -
He doesn't like my second wife. -
He finished his eleventh book. -
"O" is the fifteenth letter of the alphabet. -
She bought the flat on the thirtieth floor. -
This is the thirty-first floor. -
This is my second chance. -
He doesn't have the fourth lesson today. -
May is the fifth month of the year. -
He took the twenty-third place. -
This is her fourteenth letter. -
I read the fourth book. -
He watched the first film. -
She bought the fifty-fifth dress. -
My parents bought the second flat. -
Yesterday was the seventeenth of July. -
My brother bought the third car. -