Look at the pictures and choose the suitable colour for each idiom. Write one word in each gap. green, black, red, blue 1. A sheep. 2. To catch someone -handed. 3. The light. 4. Once in a moon. Match these idioms with their meanings. Write one number in each gap. Very rarely. A permission. An odd or bad member of the group. To catch someone when they do something wrong or illegal. :