cover the bowl with cling film and put it in the fridge.

How would the previous sentence be correctly capitalized?
Answer: Cover the bowl with cling film and put it in the fridge.
participants at the conference will be both experts and civil servants from eu countries, candidate countries and eea countries.

How would the previous sentence be correctly capitalized?
Answer: Participants at the conference will be both experts and civil servants from EU countries, candidate countries and EEA countries.
but isn't that the point of the exercise?"

How would the previous sentence be correctly capitalized?
Answer: But isn't that the point of the exercise?"
industrial swivel castor from pressed steel, plate fitting, vulcanized elastic rubber tires, precision ball bearing, wheel- 200mm, 300kg

How would the previous sentence be correctly capitalized?
Answer: industrial swivel castor from pressed steel, plate fitting, vulcanized elastic rubber tires, precision ball bearing, Wheel- 200mm, 300KG