Complete the description of table tennis. Use the correct form of have to, don't have to, can or can't. You (1)___________use a bat. You (2)___________ hold it in your right or left hand. When you serve, the ball (3) ____________ go over the net - but it (4) ____________touch the net. You (5) score 21 points to win. Usually, you (6) ____________ wear special clothes but in tournaments, players (7) ____________wear shorts and T-shirts.