I. "Present Tenses" 1. - What are you looking for? - I ..... my umbrella somewhere, and now I don’t know where it is. leave has left have been leaving have left 2. It's raining, and I see you don't have an umbrella. You can borrow mine, I ..... it now. don’t need did not need haven’t needed haven’t been needing 3. Today the world ..... so rapidly; things never stay the same. changes has changed is changing has been changing 4. Look here! I simply refuse to believe what you ..... me now. are telling have been telling have told tell 5. Anne is a fashion designer; she ..... to the opening of every new fashion show in the city. goes is going has gone has been going 6. Linda’s apartment looks nice and tidy because she ..... it every two years. redecorates is redecorating has redecorated has been redecorating 7. Nora, you look awfully tired. What ..... all day? do you do are you doing have you been doing have you done 8. Their car is as good as new though they ..... it for a number of years. have have been having are having have had 9. I have read this chapter in my chemistry text three times, and still I ..... it. haven’t understood don’t understand understand have understood 10. Zeta has sent me two letters; neither of which ..... . has arrived have arrived arrive is arriving 11. I don’t like Alice. She ..... about difficulties of life all the time. complains is complaining has complained has been complaining 12. The Alisons have got three cars, two of which they never ..... . are using use have used have not use been using 13. Paul looks young for his age. He says he is 56 years old, but nobody ..... him. hasn’t believed is not believing believes believe 14. Sonia ..... as a computer programmer this year, but she’d like to try something different in the future. works has worked is working has been working 15. Carol and I are old friends. I ..... her since we studied in high school together. know have known are knowing have been knowing