Find and correct two mistakes in each sentence .
1. Simon is most experienced person of our office.
2. Which is the large city of Africa?
3.Today is the most hot day on the year.
4. My sister is the intelligentest person at our faimily.
5. This is the more valuable in all the paintings.
6. This is the fitter player at our team.

The most experienced person in our office. What is the largestThe hottest day of the yearThe most intelligent, in our familyThe most valuable of all The fittest, in our team