12) Where was the first table tennis game played 13What was the first table tennis ball made of 14) What is the other name of pen hold grip? 15) How many kinds of important grips are there in holding the table tennis racket? 16) What is the normal holding of the racket? 17) What stroke should you hold the racket tightly? 18) When should the beginner hit the ball when he or she practices hitting? 19) Who is the official who keeps the score during the match? 20) Which Ine is the smallest line on the table tennis table? 21) What is the correct result of the best of 3 games match? 22) Give five cases of the losing points in the single's event.