1. Jake is a good footballer. Do you know since when … football? he has been playinghe playshas he been playingis he playing2. Jerry promised to…

1. Jake is a good footballer. Do you know since when … football? he has been playinghe playshas he been playingis he playing2. Jerry promised to come to work in time. He is not here, and he even … isn’t callinghasn't calledhasn't been callingdoesn’t call3. Susan is a fashion designer. Now, she … at a new set of clothes to be shown at a fashion show in April. worksis workinghas been workinghas worked4. Their car is as good as new though they … it for a number of years. havehave been havingare havinghave had5. I don’t like Alice. She … about difficulties of life all the time. complainsis complaininghas complainedhas been complaining6. There! … this big heavy cloud in the sky; I am sure it’ll rain in a minute. Do you seeHave you seenAre you seeingHave you been seeing7. For many years American schools … federal aid for special purposes. receivehave receivedhave been receivingare receiving8. Sara, my next door neighbour, has a car, but she … it very often. doesn’t useisn’t usinghasn’t usedhasn’t been using9. Look here! I simply refuse to believe what you … me now. are tellinghave been tellinghave toldtell10. Nora, you look awfully tired. What … all day? do you doare you doinghave you been doinghave you done11. Her family … from town to town ever since she can remember. is movinghas movedmoveshas been moving12. About 85 percent of American students … public schools, which are supported by state and local taxes. attendare attendinghave attendedhave been attending13. My mother is a medical nurse; she takes care of sick and old people. What … for a living? does your mother dois your mother doinghas your mother donehas your mother been doing14. A group of scientists are travelling around Africa. How many countries … so far, I wonder? have they visitedhave they been visitingthey have visiteddo they visit15. It's raining, and I see you don't have an umbrella. You can borrow mine, I … it now. don’t needdid not needhaven’t neededhaven’t been needing