A person who is in charge of a sports game and who makes certain that the rules are followed is called: 

Chọn đáp án đúng điền vào chỗ trống: 

They are going to _______ the pool to 1.8 meter.

Chọn đáp án đúng điền vào chỗ trống: 

If a defender _______ a foul within the five meter area that prevents a likely goal,the attacking team is awarded a penalty throw or shot. 

Chọn đáp án đúng điền vào chỗ trống: 

The referee had no hesitation in awarding the visiting team a _______.

After a tie, there are two overtime periods of three minutes each

Chọn đáp án đúng hoàn thành câu sau: 

_______ players are not allowed to interfere with the opponent's movements unlessthe player is holding the ball.

Chọn đáp án đúng điền vào chỗ trống: 

A defensive player may only hold, block or pull a/ an _______ who is touching or holding the ball.

Chọn từ thích hợp điển vào chỗ trống: 

Minor _______ occur when a player impedes or otherwise prevents the free movement of an opponent including swimming on the opponent's shoulders, back or legs