1.Causative structure: "Price is another factor that deters people from shopping in small shops" uses a causative structure to explain the reason behind people's shopping preferences, adding depth to the explanation.
2.Comparative structure: "higher prices compared to big retailers" uses a comparative structure to highlight the difference in pricing between small shops and big retailers, enhancing the clarity of the argument.
3.Present participle as an adjective: "frequent discounts and promotions" uses the present participle "frequent" as an adjective to describe "discounts and promotions", adding richness to the description.
4.Noun phrase as a subject: "Larger stores, with their frequent discounts and promotions," uses a complex noun phrase as the subject of the sentence, demonstrating advanced grammar skills.