Read the passage carefully and choose the correct answer.
Television first appeared some fifty years ago in the 1950s. Since then, it has been one of the most popular sources of entertainment for both the old and the young. Television offers cartoons for children, world news, music and many other programs. If someone is interested in sports, for example, he can just choose the right sports channel. There he can enjoy a broadcast of an international football match while it is actually happening. Television is also a very useful way for companies to advertise their products. It is not too hard for us to see why there is a TV set in almost every home today. And, engineers are developing interactive TV which allows communication between viewers and producers.
When did TV first appear?
A. in 1940s
B. in 1950s
C. in 1960s
D. in 1970s
Tạm dịch câu hỏi: TV lần đầu được xuất hiện là khi nào?
Thông tin: Television first appeared some fifty years ago in the 1950s.
(TV lần đầu được xuất hiện là vào khoảng 50 năm trước vào những năm 1950)
Đáp án cần chọn là: B