19. The referee's _______ is the most important in any sport competition.
a. decide b. decisive c. decision d. decider
20. _______ players are not allowed to interfere with the opponent's movements unless the player is
holding the ball.
a. Defense b. Defensive c. Defender d. Defensively
Defensive players are not allowed to interfere with the opponent's movements unless the player is holding the ball. Tạm dịch: Những cầu thủ ở hàng phòng thủ không được phép tranh bóng với đối thủ trừ khi cầu thủ đó đang giữ bóng.
21. _____ the start of each period, both teams line up on their own goal line.
a. In b. For c. From d. At
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