Is Saturday the sixth day of the week? -
Is this the sixtieth floor? -
It's his forty-fifth birthday. -
He travels alone for the first time. -
He watched the first film. -
December is the twelfth month of the year. -
I live on the forty-eighth floor. -
This writer lived in the twentieth century. -
He lived in the eighteenth century. -
Is "T" the twentieth letter of the alphabet? -
"O" is the fifteenth letter of the alphabet. -
This is my first pet. -
It's the seventh day of my holiday. -
I go to the university on the sixth of September. -
He doesn't have the fourth lesson today. -
This is not the thirtieth floor. -
It's your sixth hour here. -
He cooks this cake for the ninth time. -
My birthday is on the nineteenth of January. -
Do you see the second person to the left? -