1. Lan is the youngest of the three sisters.
Lan has two older/elder sisters.
2. There are eight hundred stamps in Hoa's collection.
Hoa's collection has eight hundred stamps.
3. Tom will be twenty next week.
It's Tom twentieth birthday next week.
4. Mr.Cuong plays table tennis well.
Mr.Cuong is a good table tennis player.
5. Lan is more intelligent than her sister.
Lan's sister isn't so intelligent as her.
6. When my mother was ill, I looked after her.
I took care of my mother when she was ill.