Find the one mistake (A, B, C or D) in the sentence and then correct them: In football, a small yellow whistle is shown to a player by the referee as a warning that the player has not obeyed a rule.

Suy nghĩ và trả lời câu hỏi trước khi xem đáp án

ATNETWORK
ADMICRO
YOMEDIA
ZUNIA9