Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the following questions.He was the first person __________.the room

Đáp án B

Rút gọn mệnh đề quan hệ:

Dùng “to V” nếu phía trước danh từ đó có “the first/ second/ only/....”

E.g: She is the only person who came here yesterday.

=> She is the only person to come here yesterday.

Đáp án B (Anh ta là người đầu tiên bước vào phòng.)