What is the question? Are you asking what that essay is it what? Sorry if I seemed rude...
Answer:
The three letter that is missing is "are"
Explanation:
Because when filling it in it will be
1. DEAREST
2. FARE
3. SHARE
4. STARE
5. DARE
6. PARENT
6. CARE
Night vision because majority of games are played when there is still light out and if it is dark they use lamps
The answer is the foil is a character that provides contrast to another character.
Foils are characters that usually are opposite the main character, to emphasize certain characteristics.