Choose the option that correctly completes the sentence: She is proficient French and German.

Question

Choose the option that correctly completes the sentence:

She is proficient French and German.

1. A. in (Correct answer)
2. B. at
3. C. on
4. D. with

Correct Answer

Option A — A

Detailed Solution & Explanation

The correct answer is Option A.

Key Points

• The fixed collocation is 'proficient IN' something — 'She is proficient in French and German.' In standard English you are proficient *in* a skill or language.

Additional Information

• 'proficient at' is sometimes heard informally with an activity ('proficient at chess'), but with languages the standard preposition is 'in'; 'on' and 'with' are not used with 'proficient'.

Exam Tip

• learn adjective + preposition pairs as fixed units — proficient in, good at, fond of, afraid of, interested in, capable of.