When faced with a problem,some people do research before they act,while others prefer to try to solve the problem right away.Which approach do you favor?

18 in 30.

You should not have a big example for speaking. Examples should be simple maybe 2-3 sentences.

and no matter what kind of topics, you always need to organize the speaking like this pattern:

1. introduction
2. reason 1
3. reason 2
4.(this is optional)reason 3 or conclusion if time is available.

Let us know if you didn't get the point.