The question to ask when evaluating an introduction is: "Does the introduction have a strong closing idea?" This question helps assess whether the introduction effectively concludes and leaves a lasting impression on the reader. To answer this question, you would need to read the introduction and analyze whether it summarizes the main points, presents a compelling idea, or wraps up the introduction in a coherent and impactful manner. By examining the concluding sentences or paragraphs of the introduction, you can determine whether it is strong or needs improvement.