10 best animal idioms in English - English Lesson ( ESL) Vocabulary & Expressions

10 best animal idioms in English - English Lesson ( ESL) Vocabulary & Expressions. Take the test : 1. As busy as a beaver Some one who is extremely busy and has no time to waste. 2. To drink like a fish Someone who drinks alcohol excessively; to be in the habit of drinking alcohol excessively. 3. Innocent as a lamb. Someone who is not corrupted or tainted with evil or unpleasant emotions. 4. be as quiet as a mouse to be very quiet 5. Crooked as a d