Speaker 1: Look at my little brother! He's only three and he can tie his shoes already!
Speaker 2: Wow! That's pretty good!
Speaker 1: Could you tie your shoes when you started kindergarten?
Speaker 2: No, I couldn't.
Speaker 1: Could you count to a hundred when you started primary school?
Speaker 2: I can't remember!
Speaker 1: Could you whistle a tune when you were eight?
Speaker 2: Yes, I could.
Speaker 1: I learnt to whistle a tune this year, but I could do up my coat when I was only six.
Speaker 2: It's interesting how we learn things at different times.