Preposition Rule for Years

This question tests the correct usage of prepositions when referring to years. The sentence is "He was born ________ 1945." We need to choose the most appropriate preposition from the given options to fill the blank.

Understanding Prepositions with Time

Prepositions help us specify time references like dates, years, months, days, and times of the day. Different prepositions are used for different time expressions:

• 'In' is used for longer periods, including years, months, seasons, and parts of the day (like morning, afternoon, evening). Example: in 2023, in July, in summer, in the morning.
• 'On' is used for specific days and dates. Example: on Monday, on 15th August, on Christmas Day.
• 'At' is used for specific clock times and certain fixed expressions. Example: at 9 AM, at night, at the weekend (UK English).
• 'For' is used to indicate a duration of time. Example: for two hours, for a week.

Analyzing the Options

Let's examine why the correct option fits and the others don't:

• 1. in: This is the correct preposition to use with years. Since 1945 is a year, "He was born in 1945" is grammatically correct.
• 2. for: This preposition indicates duration. It cannot be used to specify the year someone was born. "He was born for 1945" is incorrect.
• 3. on: This preposition is used for specific dates (day and month) or days of the week. Since only the year is mentioned, 'on' is not the appropriate choice here. "He was born on 1945" is incorrect.
• 4. at: This preposition is used for specific times (like 5 PM) or specific points in time, not generally for years. "He was born at 1945" is incorrect.

Conclusion

Based on standard English grammar rules for prepositions of time, the preposition 'in' is used before years. Therefore, the correct sentence is "He was born in 1945."