SPOT THE ERROR:When I was younger, I wanted to be a professional tennis player, but I wasn't enough good.

Explanation

Analysis: The word "enough" is incorrectly used in this context. The correct phrase should be "good enough," where "enough" follows "good" to modify it properly.Conclusion: This option contains the error.Enough: This option is the correct one to mark, as "enough" is incorrectly used. The correct phrase should be "good enough," where "enough" follows "good" to modify it properly.Explanation:"When" is correctly used to indicate the time frame."To be" is correctly used to express the goal of becoming a professional tennis player."But" is correctly used to introduce a contrast."Enough" is incorrect without "good" preceding it; "good enough" is the correct phrase to describe the level of proficiency needed.Therefore, the correct answer is D) Enough.