33. D. I'd rather you not to smoke in here.
34. D. Both B and C are correct.
35. C. Julie was very ill, but she's got over it now.
36. A. It’s a month since my father last smoked cigarettes.
37. D. We have been writing to each other for eight years.
38. B. We had to write the letter when our money was lost.
39. B. By the time you have finished dinner, the film will end.
40. A. All the seats for the concert next Sunday have been booked