38. To tell you the truth, I don't believe in the private hospitals which claim to be able to cure any disease.
39. He is beginning to understand the truth that whatever suits you is the best.
40. She is forgetful and often needs the others to remind her of this or that.
41. We all know that every citizen's rights of life and health are protected by the law.
42. An old man in Tianjin has aided several hundreds of students from poor families by riding a tricycle in the past ten years.
43. I think we should owe the achievements made in China in the past twenty years to Comrade Deng Xiaoping.
44. The scientists have been trying to find some new resources of energy to replace oil.
45. He hesitated for several days before he made up his mind to buy that house.