Recommended answers:
Competent, punctual, honest, objective, hard-working, sensitive, attentive (to details)...
Any more?... Yes, there are more; but you need to select them carefully. Some of these adjectives can describe you as a person while other adjectives will describe you as an ESL teacher.
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The following list of positive adjectives will be helpful:
ambitious, persistent, agreeable, brave, calm, coherent, confident, cooperative, cultured, decisive, determined, diligent, dynamic, efficient, energetic, entertaining, enthusiastic, fair, frank, friendly, gentle, harmonious, helpful, industrious, kind, kind-hearted, knowledgeable, mature, modern, peaceful, productive, salubrious, tenacious, quiet, receptive, reflective, resolute, rhetorical, romantic, sensitive, shrewd, sincere, skillful, successful, succinct, talented, thoughtful, thrifty, tough, trustworthy, unbiased, vigorous, warm, wise, witty.Get more useful tips here...