The key answer of exercise 6

a)

1. option
2. hopeless
3. doubt
4. chance
5. hope
6. doubt
7. any chance
8. doubt

b)

1. no chance = no possibility; no doubt = certainty
2. doubtful = unlikely; possible = there is a chance
3. haven't a hope /chance = same meaning
4. remote / slim = same meaning
5. bound / sure = same meaning
6. likelihood / chance = same meaning
7. every likelihood = a slightly better chance than a distinct possibility
8. chance / hope both refer to possibility, hope implies a more personal involvement in the outcome