1. Hoa is older than me.
→ I  am younger than hoa
2. Are you thirsty or hungry?
3. No one in the class is the tallest than Alison.
→ Alison  is the tallest in the class
4. Thirty days have April, June, September and November.
→ There are April, June, September and November. in Thirty days

1 => I  am younger than hoa
3 => Alison  is the tallest in the class
4 => There are April, June, September and November. in Thirty days