How to Improve Your IELTS Fluency and Coherence Score

If you start talking about the topic and then you kind of wander, that is fine. It's not the worst thing in the world to go off the topic. Every sentence has to be connected to the topic. There is no space for tangents on IELTS. So this advice is true for all parts of the test. You're graded on your ability to communicate, not your ability to stick to one topic strictly.