This is the thirty-first floor. -
Is this the eightieth floor? -
Today is the thirtieth of April. -
Do you like my third appartment? -
Thursday is the fourth day of the week. -
This is his thirteenth message. -
It's his forty-fifth birthday. -
This is our ninth dancing class. -
He goes to the doctor for the third time. -
John is my first love. -
You tell me this for the tenth time! -
Is "T" the twentieth letter of the alphabet? -
They come back on the second of August. -
This is my tenth car. -
It's their fourth week here. -
Mary is his first love. -
What is the third day of the week? -
She travels alone for the second time. -
She bought the flat on the thirtieth floor. -
What is the twenty-second letter of the alphabet? -