The game originated in England during in the 1880s,where it was played among the upper-class as an after-dinner porlour game. It has been suggested that the game was first developed by British military officers in India or South Africa who brought it back with them. A row of books was stood up along the center of th table as a net, two more books served as rackets and were used to continuasly hit a golf-ball from one end of the tablw to the other. The popularity of the game led game manufactures to sell equipment commercially. Early rackets were often pieces of parchment stretched upon a frame, and the sound generated in play gave the name it first nicknames "wiff-waff" and "ping-pong". Table tennis was growing in popularity by 1901 to the extent that tpurnaments were being organozed, books being written on the subject, and an unofficial world championship was held in 1902. During the early 1900s , the game was banned in Russia, because the ruler at the time believed that playing the game had an effect on player's eyesight. In 1921, the Table Tennis Association was founded in Britain, and the International Table Tennis Federation (ITTF) followed in 1926. London hasted the first official World Championships in 1926. In 1933, the United States Table Tennis Association, now called USA Table Tennis, was formed. Tabletennis was introduced as Olympic sport at the Olympics in 1988.
1. If you need cash, I can lend you a little.
2. If I find your keys, I will tell you about it.
3. If the weather is good, we will go for a walk.
4. We will not go for a walk if the weather is bad.
5. If I go to the store, I will buy milk.
6. What will you do if you win a lot of money?
7. I will do it again if you do not like my work.
8. If you go now, you won’t be late.
9. If she does not come to the party, I will not invite her next time.
10. If he calls me, I will be glad.
11. If he does not finish this task today, he will be behind schedule.
12. If we do not hurry, we are late for the train.