A frequent Band 6 Task Response pattern is this: you wrote about the topic, but you did not do the job the question asked. The instruction word matters - agree, discuss both views, advantages, problems, or two questions. If the introduction does not do that job, later paragraphs cannot rescue it. Other common caps are undeveloped lists instead of one idea per paragraph, a memorised template that misses the question type, and grammar slips in the last paragraph when the clock runs out. You will not know which of those is yours until one essay is marked on all four criteria. Then fix the lowest criterion the next day, rather than writing five untimed essays.
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