It was believed that he himself has travelled all over the world for the shortest time.Đoạn văn31/40Mark the letter A, B, C or D on your answer sheet to indicate the underlined part that needs correcting in each of the following questions. It was believed that he himself has travelled all over the world for the shortest time. was believedhas travelledover the worldshortestGiải thíchChọn đáp án B