Please capitalize where necessary: one can therefore assume that his classmates may have had other interests than him.
A: One can therefore assume that his classmates may have had other interests than him.

Please capitalize where necessary: other trawlers from 24 to 39,9 m
A: Other trawlers from 24 to 39,9 m

Please capitalize where necessary: 1946: the communist insurgents organize into a democratic army of greece and continue the greek civil war.
A: 1946: The communist insurgents organize into a Democratic Army of Greece and continue the Greek civil war.

Please capitalize where necessary: you can shape your balcony using planting boxes for the balcony rail, plant baskets, bed-boxes for the ground, planting bags with bottom openings for potatoes, planting bags which are fixed to the wall, climbing trellis or even a balcony-greenhouse.
A:
You can shape your balcony using planting boxes for the balcony rail, plant baskets, bed-boxes for the ground, planting bags with bottom openings for potatoes, planting bags which are fixed to the wall, climbing trellis or even a balcony-greenhouse.