This is my first pet. -
Thursday is the fourth day of the week. -
He lived in the eighteenth century. -
I read the fourth book. -
Is "T" the twentieth letter of the alphabet? -
This writer lived in the twentieth century. -
It's my fiftieth birthday. -
She lived in the thirteenth century. -
Jane is his first wife. -
He doesn't like my second wife. -
He lives on the eightieth floor. -
It's our fifth year here. -
I go to the university on the sixth of September. -
He bought the sixty-sixth shirt. -
This is not the thirtieth floor. -
You go to Italy on the fourteenth of July. -
She bought the flat on the thirtieth floor. -
November is the eleventh month of the year. -
It's her second day here. -
She bought the fifty-fifth dress. -