According to the passage, when did the word "icebox" become part of the language of

* Hướng dẫn giải

Đáp án B

Theo bài đọc, từ “icebox” trở thành một phần ngôn ngữ của nước Mỹ khi nào?

A. năm 1803

B. khoảng trước năm 1850

C. Suốt thời nội chiến

D. những năm 1950

Dẫn chứng: By the mid-nineteenth century, the term "icebox" had entered the American language, butice was still only beginning to affect the diet of ordinary citizens in the United States. 

After the  Civil War (1860-1865), as ice was used to refrigerate freight cars, it also came into household use. Even before 1880, half the ice sold in New York, Philadelphia, and Baltimore, and one-third of that sold in Boston and Chicago, went to families for their own use