Describe an advertisement which has impressed you most.
You should say:
what the product is
where you knew it
what contents it includes
and explain why it is impressive.
Advertisement is as important as the quality of a product. A successful advertisement can help enhance the sales. Years ago, I saw a commercial about a kind of sunglasses. On the screen, you can see many vampires dancing. They were having a party. They were singing and laughing. Suddenly the sun rose. All the vampires disappeared except one, the one who was wearing sunglasses. It took viewers some time to think about the wise idea involved in this ad. I thought it was the most original and initiative commercial I had ever seen. It made a deep impression on me. Even if I don't buy their products, I'll remember them. People know vampires are afraid of sunlight. If vampires can be protected, people are safe, too. It says clearly that the sunglasses can protect your eyes from strong sunshine.