issb english MCQ #262

Fill in the blank: He is proficient ___ English.

issb english MCQ #262

  1. Question 1

    Q1. Fill in the blank: He is proficient ___ English.

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

    Answer: in

    Explanation: Proficient in a language or subject is preferred in formal tests. Review the rule behind the correct option so you can apply it to similar questions.