claims= your belief on something with evidence to support it
I think sport figures and celebrities make negative role models. More often than not, a celebrity has or is doing drugs, using alcohol, has been arrested, wearing revealing clothing, etc. A celebrity many people looked up to and aspired to be may mimic what this celebrity does. If this celebrity decides to do go as far as doing drugs or become an alcoholic, then the people looking up to this celebrity may follow in their footsteps and attempt to be like them. This would make celebrities negative role models.
I couldn't come up with anything for how sports figures are bad role models other than they might overwork themselves, so people may try to perform as good as the sport figure. hope this helps
It’s after the word English
Infinitive: To tell a lie
Use: to describe what is frustrating the honest people
One of the key moments is definitely the I have a dream speech by reverend King. The speech showed how united they were and how they won't stop until they get their freedom. Another can be the assassination of JFK, which was important because a lot of people started supporting Johnson in passing the civil rights acts because they were actually supporting Kennedy who first wanted to bring these acts into law.