Match the idioms on the left with the definitions on the right. The tiles in the right-hand column are sortable. ANSWERS
- catch somebody red-handed
- get the green light
- in black and white
- once in a blue moon
- be in someone's black books
- off colour
- green with envy
- out of the blue
- be in the pink
- see red
- in writing
- unwell, unhealthy
- without any warning, by surprise
- to get the permission to start or continue something
- to be in disgrace or in disfavour with someone
- to become very angry
- very jealous
- to catch somebody while they are doing sth wrong
- to be in good health
- hardly ever, rarely