The fourth quote shows that the narrator is persevering through the hardships. The first quote only says that Arab Sheikh is pushing the narrator on, not that the narrator is actually trying. The second quote is quite the opposite of going on - in this one, the narrator wants to stop. The third quote only talks about the pains the narrator was experiencing, not of if he would go on or not. Only the fourth quote talks about moving on despite all the pain and aching.
Bad- people spend a lot of time on devices and technology and they become dependent on it
Good- it can used as a helpful tool (directions, homework help)
The persuasive technique that is being used here is name-calling.
This means that this cereal company is using, usually fake news and no evidence to say bad things about the rival company, disregarding whether it is actually true or not. People will see this cereal ad and believe it, regardless of whether there are any evidence to prove the claims.