Mark the letter A, B, C or D on your answer sheet to indicate the word(s) CLOSEST in meaning to the underlined word(s) in each of the following questions.
In the 1980s, TV viewers began to hook up videocassette players to their TVs.
A. combine
B. stop
C. fasten
D. connect
Đáp án : A
By hand = bằng tay, thủ công = manually