Question

Find out the correct preposition.
He will qualify _ _ _ _ _ _ a year of entering the campus.

• A. from
• B. since
• C. with
• D. within

Hint:

Use \textit{within} to show that something will happen before a certain period ends (e.g., within a year, within two days).

Answer 1

The Correct Option is D

Concept: Prepositions related to time must match the intended meaning of duration or deadline. Explanation: \textit{Within} is used to indicate a time limit before a certain period ends. The sentence means he will qualify before one year is completed. Therefore, “He will qualify within a year of entering the campus” is correct. The other options do not convey the correct time relationship.