This is the ninety-ninth problem for me. -
It's my first week here. -
"O" is the fifteenth letter of the alphabet. -
Thursday is the fourth day of the week. -
This is the fiftieth floor. -
Jane is his first wife. -
Read the seventh part of the book. -
He took the twenty-third place. -
He doesn't like my second wife. -
December is the twelfth month of the year. -
Kate is her third daughter. -
What is the third day of the week? -
May is the fifth month of the year. -
My second dress is more beautiful. -
Tomorrow is the twenty-ninth of February! -
Is Saturday the sixth day of the week? -
Yesterday was the seventeenth of July. -
He doesn't have the fourth lesson today. -
This is my tenth car. -
Is this her seventh time in London? -