Bộ 10 đề ôn thi học sinh giỏi Tiếng anh lớp 9 năm 2023 có đáp án (Đề 6)

This has been called the "fight or flight" (64) ________, meeting danger by fighting it or running away.

55/96

This has been called the "fight or flight" (64) ________, meeting danger by fighting it or running away.

reactionary

reactor

reaction

reacting

Giải thích

Chọn C