issb english MCQ #160

Fill in the blank: The candidate is proficient ___ map reading.

issb english MCQ #160

  1. Question 1

    Q1. Fill in the blank: The candidate is proficient ___ map reading.

    • A) in
    • B) on
    • C) at
    • D) with

    Answer: in

    Explanation: Standard usage is proficient in a skill or subject. Proficient at is sometimes heard, but proficient in is preferred in formal tests.