Automobile began to be equipped by built-inradios around 1930 automobile by built-in45/50Mark the letter A, B, C, or D on your answer sheet to indicate the underlined part that needs correction in each of the following questions. Automobile (A) began to be equipped by (B) built-in (C) radios around (D) 1930.automobilebybuilt-inaroundGiải thíchĐáp án B. Đổi by → with To be equipped with: được trang bị bởi