Исправьте ошибки в предложениях he is the most oldest student in his group you are taller then me my car is beter than his it is one of most beautiful lakes in the world these flowers are more cheap than those ones

1. He is the oldest student in his groupe.
2. You are taller than me.
3. My car is better than his.
4. It is one of the most beautiful lakes in the world.
5. These flowers are cheaper than those ones.

You are taller than me
It is one of the most beautiful lakes in the world
These flowers are cheaper than those ones