Choose the sentence that is closest in meaning to each of the given sentences, 51. I last met him ten years ago. A. I have recently seen him. B. I haven't seen him for ten years. C. The last time I saw him was last year. D. I am going to meet him in ten years' time. 52. They use this pencil to draw thick lines. A This pencil is used to draw thick lines. B. This pencil is used to drawing thick lines. C. Thick lines used to be drawn with this pencil. D. Thick lines are used to being drawn by this pencil. 53. He said to her, “I'll help you when you need me." A. He told her that he will help her when she needs me. B. He said that he would help you when she needed him. C. He promised that he would help her when she needed him. D. He asked her whether she would help him when he needed her. 54. He wishes he could have more time to go swimming every day. A. If he could swim, he would have more time every day. B. If he had more time, he would go swimming every day. C. He says that he has more time to go swimming every day. D. He is pleased that he has more time to go swimming every day. 55. Before he left the room, he turned off all the devices to save electricity. A. After he turned off all the devices to save electricity, he left the room. B. He left the room without turning off all the devices to save electricity C. He left the room although he did not turn off all the devices to save electricity. D. Because he was in the right room, he turned off all the devices to save electricity