35. Taking photographs is not permitted here. A. Photographers must not use flash here. B. Do not remove these photographs. C. Do not use your camera here. D. Photographs are on sale here. 36. I last saw him when I was a child. A. I have seen him since I was a child. B. I haven’t seen him since I was a child. C. I have seen him when I was a child. D. I haven’t seen him when I was a child. 37. He wrote the letter in two hours. A. He spends two hours to write the letter. B. He spends two hours writing the letter. C. He spent two hours to write the letter. D. He spent two hours writing the letter. 38. I have never read such a good book before. A. This book is the best I have never read. B. This book is the best I have ever read. C. This is the first time I had read such a good book. D. This is the first time I read a good book. 39. The trip was boring but we enjoyed it a lot. A. We liked the trip very much because it was boring. B. Although the trip was boring but we enjoyed it a lot. C. The trip was boring although we enjoyed it a lot. D. We liked the trip very much although it was boring. 40. The old house burned down last week. No one lived there. A. The old house burned down last week, so no one lived there. B. No one lived in the old house, but it burned down last week. C. No one lived in the old house, which made it burned down last week. D. The old house where no one lived burned down last week.