The following question comes from Cambridge IELTS book 8.
Increasing the price of petrol is the best way to solve growing traffic and pollution problems.
To what extent do you agree or disagree?
What other measures do you think might be effective?
My students wrote the introduction below. Notice that it addresses all parts of the question so that the examiner knows exactly what our position is.
Traffic and pollution are growing problems in today’s society. Personally, I disagree with the idea that higher petrol prices could solve these problems, and I believe that various other measures would be more constructive.
PS. Don't waste time writing a longer introduction than this. The main body paragraphs are much more important!