3 My blog Complete the text. Use ordinal numbers.

Planning is fun! On the 1st day of every month I start to plan. My sister doesn't like planning! After the 3rd or 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 15th and my sister forgot! It's the 2nd time she forgets!
Lucky for my sister, I remembered. I bought a present for mum on the 13th. 'Thank you, little sister!' she said. My birthday is on the 28th of this month. Is my sister going to remember?