"O" is the fifteenth letter of the alphabet. -
It's our fifth year here. -
My second dress is more beautiful. -
What is the third day of the week? -
She lived in the thirteenth century. -
November is the eleventh month of the year. -
She bought the flat on the thirtieth floor. -
Is Saturday the sixth day of the week? -
I read the fourth book. -
It's my fiftieth birthday. -
Tomorrow is her sixtieth birthday. -
December is the twelfth month of the year. -
I cook this pizza for the tenth time. -
I wrote my sixth song. -
I live on the forty-eighth floor. -
Today is the thirtieth of April. -
This is the twenty-fifth time I come here. -
He saw her for the first time. -
My brother bought the third car. -
I have the third lesson today. -