1. B. Window shopping allows people to plan and save for future purchases.

2. C. "Drop in price" có nghĩa là "become cheaper" (trở nên rẻ hơn).

3. A. Câu "It is common to buy a gift voucher..." phù hợp nhất ở vị trí [I].

4. C. Items are always of better quality than those in physical stores. (Vì chất lượng hàng online không được đề cập như một lợi ích).

5. A. Shopping is an important part of life, and people have different attitudes toward spending money.

6. A. "Self-service" gần nghĩa nhất với "automatic" (tự động).

7. B. People find it difficult to use self-service machines when there is a problem and no one is there to help.

8. B. Some people prefer to shop in stores to avoid receiving disappointing items.