I don't think that many people can say that they love math, but I'm one of those people. For me math is not only a subject, it is my everyday exercise. Some people go to the gym, some people run in the mornings and I solve math problems before I go to bed to exercise my brain. I do that to keep my brain working since the brain is just another muscle in our body and you can't expect a muscle to stay fit if you don't exercise. Therefore, I exercise everyday to keep my brain fit.
1) I have done another exercise. Fine!. How many exercises have you done? 2) He has not had a vacation for two or three years. He has not have a piad leave, since he changed jobs. Why did he change jobs? Their company had gone bankrupt. 3) What kind of paper did he read yesterday? I did not pay any attention to it. 4) When did they sell the flat? They sold the flat in August. Have they bought a new flat? Yes, they bought a new flat a month ago. They have already moved into it. 5) When did you last go to the theater? I went to the theater last year. Have you ever been at the Bolshoi? No, I haven't.
1. We've been using this machine for three years. It has worked perfectly. 2. I've been thinking all day about what I'm going to say when we come to them. 3. Why are you so excited? —We have been having an argument. 4. This man has been following us all the way from the station. He probably doesn't know the way. 5. What has been going on here? Why is everyone so excited? 6. This noise has been bothering me since morning, and I can't find out where it's coming from. 7. You've been drinking too much coffee lately. 8. He was sure that she had been living in Moscow since 1935. 9. Have you been smoking in the room again? 10. Have you been crying? What's the matter? 11. He had such a feeling that he'd been living here for a long time. 12. The last time she left school, where she had been studying for ten years, she didn't think that she would return to it, but as a teacher. 13. He's been wearing glasses since his childhood.
BASKETBALL The game of basketball is unique among popular Sports. The world (has enjoyed) it for a century. But not all of us (know) the history of the game. It (was invented) by a Canadian, first (was played) in the USA and specially (was planned) to meet a definite need. In 1891 Dr James A. Naismith (was) a physical director of the international Y.M.C.A.* training school in Springfield, Mass.** For some years the interest of young Canadians and Americans in the customary programme of Calisthenics*** and Gymnastics (was weakening). Dr Naismith (was asked) to invent a competitive game that (would hold) the enthusiasm of the students. It (was suggested) that the game (had) simple rules that (could be learnt) easily; it (was to be) free from bodily contact; good for players over a wide range of ages and it (was to have) inexpensive equipment. The game (was to be played) by day and by night in small gymnasiums. Dr Naismith (solved) all these problems in his game. He (called) it basketball, because the players (were to throw) a round ball into a basket-shaped net hung at either end of the gymnasium. At first the game (was played) with as many as nine players on a side. It soon (was realized) that five to a team (resulted) in cleaner and faster play. The inventor (suggested) 13 basic rules, and most of them (are) still in effect; there (have been) some changes in playing conditions and rules of the game.
