Search from various English teachers...
Christine
Professional TeacherHave you heard of the idiom, "as sharp as a tack?" Check your understanding with this quiz question.
Despite being over 90, my mother-in-law is as sharp as a tack. This means that:
she is very sarcastic.
she is very intelligent and clever.
she is always insulting everyone.
she is confused and nonsensical.
20 quizzed
Nov 12, 2025 8:46 PM
Christine
Language Skills
English, Portuguese
Learning Language
Portuguese
Articles You May Also Like

Why "General English" is Failing Your Career (An Engineer’s Perspective)
10 likes · 7 Comments

Why Many Kids Struggle With English - and How the Right Tutor Makes a Difference
2 likes · 2 Comments

Why “Just Around the Corner” Is (Usually) a Lie
8 likes · 4 Comments
More articles
