Social media has become an important part of our daily lives. Many people spend (1) _______ on...Đoạn văn48/83Mark the letter A, B, C, or D on your answer sheet to indicate the correct option that best fits each of the numbered blanks from 47 to 53. a great amount of timesa great amount of time a great amounts of timea great number of timesGiải thíchChọn đáp án B