3 My blog. Complete the text. Use ordinal numbers.

Let's fill in the blanks with the correct ordinal numbers:
Planning is fun! On the first (1st) day of every month I start to plan. My sister doesn't like planning! After the third (3rd) or fourth (4th) day of every month she says 'Oh, is it a new month?'

Last month we had a problem. Mum's birthday was on the fifteenth (15th) and my second (2nd) sister forgot! It's the first time she forgets!

Lucky for my sister, I remembered. I bought a present for mum on the thirteenth (13th). 'Thank you, little sister!' she said. My birthday is on the twenty-eighth (28th) of this month. Is my sister going to remember?