The key answer of exercise 6

1

1. earn 
2. earned (If you earn a break, it means you deserve a break because you’ve worked hard.)

2

1. waste 
2. waste (If something is a waste of breath, it means that there is no point in saying it because nobody is listening to you.)

3

1. bet 
2. bet (Here, I bet means ‘I imagine’ or ‘I believe’.)

4

1. gamble 
2. gambling (If you gamble with your life you take too many risks.)

5

1. odds
2. odds (Against all odds means ‘against all expectations’.)

6

1. lottery
2. lottery (If something is a bit of a lottery, it is a situation in which everything depends on luck or chance.)

7

1. jackpot (A rollover is a term used to describe when nobody wins and the money offered as a prize is carried on to the next draw.)
2. jackpot (He hit the jackpot means he was very lucky, or got the best thing possible.)

8

1. stake
2. stake (There’s a lot at stake means there are very important issues involved and the outcome could affect people seriously.)