21.Which of the following statement s best expresses the author's view?
A)The words people use can influence their behavior.
B)Unpleasant wors in sports are often used by foreign athletes.
C)Aggressive behavior in sports can have serious consequences.
D)Unfair judgments by regerees will lead to violence on the sports field.

22.
A)are too eager to win.
B)treat their rivals as enecies.
C)are usually short-tempered and easily offended.
D)cannot afford to be polite in fierce competitions.

23.
A)He angrily hit the referee with a ball.
B)He refused to continue the game.
C)He claimed that the referee was unfair.
D)He wet his gloves by rubbing them across the T-shirt.

24.According to the passage, players in a game may __________.
A)kick the ball across the court with force.
B)lie down on the ground as an act of protest.
C)deliberately throw the ball at anyone illegally blocking their way.
D)keep on screaming and shouting throughout the game.

25.The author hopes to have the current situation in sports improved
by_______.
A)regulating the relationship between players and referees.
B)calling on players to use clean language on the court.
C)raising the referees' sense of responsibility.
D)changing the attitude of players on the sports field.