If we're going to write an essay following our 'strong opinion' plan, we need to start with an introduction that makes our view very clear.
Here's the question again:
Some people who have been in prison become good citizens later, and it is often argued that these are the best people to talk to teenagers about the dangers of committing a crime.
To what extent do you agree or disagree?
And here's a 'strong opinion' introduction:
It is true that ex-prisoners can become normal, productive members of society. I completely agree with the idea that allowing such people to speak to teenagers about their experiences is the best way to discourage young people from breaking the law.
Note: Can you see the examples of paraphrasing that I used?