Answers

Acitvity1
Rainbow and stripe

Activity 2
blue-chip company, blue-blooded, black market, white lie, green fingers, blackjack, red tape, green card.

Activity 3.
1. blue-chip company,
2. blue-blooded,
3. black market,
4. blackjack,
5. white lie,
6. red tape,
7. green card
8. green fingers,

Avtivity 4.