13. I________to Greece until Sally and I went there last summer. A. have never been B. had never been C. was never being D. were never 14. I________ along the street when I suddenly heard footsteps behind me. A. was walking B. am walking C. walk D. walked 15. He occasionally________a headache in the morning. A. has had B. has C. have D. is having 16. The boy fell while he________down the stairs. A. run B. running C. was running D.runs 17. I will come and see you before I________for America. A. leave B. will leave C. have left D. left 18. When the first child was born, they _______ for three years. A. have been married B. had been married C. will be married D. will have been married 19. It________a long time since we were apart. I did not recognize her. A. is B. has been C. was D. had been 20. Many of the people who attended Mr. David’s funeral________him for many years. A. didn’t see B. wouldn’t see C. haven’t seen D. hadn’t seen 21. We were both very excited about the visit, as we________each other for________ages. A. never saw B. didn’t see C. hadn’t seen D. haven’t seen 22. His health has improved a lot since he________doing exercises regularly. A. starts B. started C. has started D. had started 23. She hurt herself while she________hide-and-seek with her friends. A. is playing B. had played C. played D. was playing 24. What________at 9 o’clock last night? I phoned you but couldn’t get through to you. A. did you do B. were you doing C. would you do D. had you done 25. It is raining heavily with rolls of thunder. We________such a terrible thunderstorm. A. would never see B. had never seen C. have never seen D. never see 26. I _______ my old teacher last week. A. visited B. visit C. am visiting D. have visited 27. My brother usually ________me for help when he has any difficulties with his homework. A. ask B. asks C. asked D. has asked 28. I ______ all of my homework last night. A. finish B. will finish C. have finished D. finished 29. Lan________ learning English a few years ago. A. starts B. will start C. started D. is starting 30. The children________to bed before their parents came home from work. A. were all going B. had all gone C. had all been going D. have all gone 31. Paul noticed a job advertisement while he________along the street. A. was walking B. would walk C. walked D. had walked 32. I haven’t met him again since we________school ten years ago. A. have left B. leave C. left D. had left 33. For the last 20 years, we________significant changes in the world of science and technology. A. witness B. have witnessed C. witnessed D. are witnessing