Chọn một phương án đúng (A, B, C hoặc D) để điền vào chỗ trống trong đoạn văn sau.
Jeans are very popular with young people all over the world. Some people say that jeans are the "uniform" of youth. But they haven't always been(1) ______. The story of jeans started almost two hundred years ago. People in Genoa, Italy made pants. The cloth (2) ______ was made in Genoa was called "jeanos". The pants were called "jeans". In 1850, a saleman in California began selling pants made of canvas. His name was Levi Strauss. (3) ______ they were so strong, "Levi's pants" became popular with gold miners; farmers and cowboys. Six years later; Levis began (4) ______his pants with blue cotton cloth called denim. Soon after, factory workers in the United States and Europe began wearing jeans.
1. A. popularly B. popular C. popularity D. popularize
2. A. which B. who C. what D. whom
3. A. Although B. But C. Because D. So
4. A. doing B. taking C. inventing D. making