Exercise 20 : Mark the letter A, B, C or D to indicate the correct answer to each of the following questions. Question 1 : While they_____to Wyoming, their car ran out of gas. A. drove B. had been dri...

1. D. were driving 2. A. had been dieting 3. D. has altered 4. B. will have sold 5. A. will print - will send 6. A. had been looking 7. A. arrived - had noticed - had left 8. C. goes - is going 9. D. had been typing 10. C. left - has been crying 11. A. have sold 12. B. is watering - am 13. C. had discovered 14. A. had decided 15. A. had woken up - was lying 16. B. had come back - solved 17. D. announced - haven’t seen 18. B. will have forgotten 19. C. has had - looks 20. D. was waiting - stole 21. C. hadn’t finished - began 22. C. have checked - are 23. A. causes 24. D. will have read 25. C. will have 26. A. breathe - became 27. B. will have sent - has received 28. C. had been 29. D. will get 30. D. were - decided 31. C. will scratch 32. D. Will - be cutting off 33. B. was putting 34. A. will submit - has collected 35. C. died - had been 36. A. realized - was happening - had - been 37. B. pretended - was thinking 38. D. has earned - didn’t know 39. A. will walk 40. C. promised - are settling 41. C. doesn’t envy 42. B. don’t do - will think 43. A. warned - doesn’t stop 44. B. has studied - has come 45. A. was tidying 46. A. has worked 47. B. has never visited 48. C. had fallen in 49. B. didn’t realize - have affected 50. B. show - is