IT CAN BE INFERRED FROM THE PASSAGE THAT BEFORE THE CIVIL WAR, SLEEPING CARS____________

43. - Đề thi mẫu đánh giá năng lực môn Tiếng Anh trường ĐHQG Hồ Chí Minh
Tiếng Anh Đề thi mẫu đánh giá năng lực môn Tiếng Anh trường ĐHQG Hồ Chí Minh

43.

It can be inferred from the passage that before the Civil War, sleeping cars

____________.

A. were used abundantly B. were thought to be a good idea

B. were only used privately D. were used by presidents