It was believed that he himself has travelled all over the world for the shortest time.
It was believed that he himself has travelled all over the world for the shortest time.
A. believed
B. has travelled
C. over the world
D. shortest
Đáp án B
Has travelled -> had travelledĐộng từ dẫn ở thì quá khứ nên các thì đằng sau phải có hiện tương lùi thì