Bonjour,
Réponse :
1. All part of the game = g. a normal part of a particular activity
2. A whole new ball game = e. a situation that is completely different from what has happened before
3. To keep several balls in the air = h. to try to do a number of different things at the same time
4. to move the goalposts = a. to change the rules and make it difficult for people to achieve something or know what to do
5. To know the score = d. to know the truth about something, especially when it is unpleasant
6. To be ahead of the game = c. to be in a situation that is likely to lead to success as the result of good planning etc.
7. A shot in the dark = f. a guess that you make without having any facts or ideas to support it
8. A one-horse race = b. a competition in which it is obvious who will win
