This is the ninety-ninth problem for me. -
This is my second chance. -
He took the twenty-third place. -
This is our tenth meeting. -
This is our ninth dancing class. -
This king lived in the twelfth century. -
"O" is the fifteenth letter of the alphabet. -
Is this his fifth time here? -
This is his thirteenth message. -
Do you like my third appartment? -
It's my first week here. -
What is the third day of the week? -
My birthday is on the nineteenth of January. -
Do you see the second person to the left? -
Read the seventh part of the book. -
This is not the thirtieth floor. -
Mark is his fourth son. -
Tomorrow is her sixtieth birthday. -
It's his third month here. -
You go to Italy on the fourteenth of July. -