Select the appropriate idiom that can replace the underlined phrase in the following sentence.
He is experienced and full of wisdom as he is teaching chemistry at a university at a very young age of 25.
Show answer & explanation
Correct answer: A
Explanation
The correct answer is option 1 i.e. an old head on young shoulders.
- This idiom is used to describe someone who is mature and wise beyond their years.
- It suggests that despite being young in age, the person displays wisdom and maturity comparable to that of someone much older.