Question

Some idioms make the English language really colourful. Tick the “blue” idioms. 1) out of the … 2) … collar 3) paint the town … 4) in the … 5) once in a … moon 6) pitch … 7) … with envy

Answer 1

1) out of the blue
2) blue collar
5) once in a blue moon

Answer 2

1. out of the blue
2. blue collar
3. paint the town red
4. in the blue
5. once in a blue moon
6. pitch black
7. green with envy

The blue idioms are number 2, 4, and 5.