**Core Concept**: Tense consistency (present simple for habitual actions). **Analysis**: - **Correct Answer (A)**: 'Imitate' uses the present simple tense to describe repeated, habitual behavior, as indicated by 'often.' - **Error Options**: - B. 'Imitated' (past tense) mismatches the habitual context. - C. 'Will imitate' (future) inaccurately shifts focus from routine actions. - D. 'Have imitated' (present perfect) emphasizes completion, not frequency. **Key Insight**: Adverbs like 'often' require present simple tense. **Common Pitfall**: Overcomplicating tense usage despite clear time cues.