Is this his fifth time here? -
Is "T" the twentieth letter of the alphabet? -
He travels alone for the first time. -
Read the seventh part of the book. -
I read the fourth book. -
November is the eleventh month of the year. -
What is the twenty-second letter of the alphabet? -
I wrote my sixth song. -
He took the twenty-third place. -
He finished his eleventh book. -
Is this the eightieth floor? -
This is her fourteenth letter. -
This is the twenty-fifth time I come here. -
Yesterday he had his sixth exam. -
This is the thirty-first floor. -
This is not the eighth floor. -
It's our fifth year here. -
This is not the thirtieth floor. -
This writer lived in the twentieth century. -
It's the seventh day of my holiday. -