Correct Answer:
A. on, in, on
The correct answer utilizes prepositions appropriately for both time and place, adhering to standard English usage.
- 'on holiday' is a widely accepted British English idiom, signifying participation in a holiday period. Using 'in holiday' would be grammatically incorrect.
- 'in June' correctly employs 'in' for specifying months, seasons, and years. The preposition 'on' is typically reserved for more specific dates or individual days.
- 'on the wall' is the accurate choice for indicating something's position on a vertical surface. 'Along' would imply movement or extension parallel to the wall, which does not fit the context of hanging pictures.
Therefore, the combination 'on, in, on' is the only option that aligns with the conventional rules of English preposition usage in these specific contexts, demonstrating a foundational understanding of these common phrases.