41. It is a great honor for me to introduce to you one of my very best friend, Liu Xiang.
42. Coming from a family of English teachers, she always had a particular interest in English.
43. I have fully realized that English is essential to my future.
44. I suppose electronic dictionaries are convenient, but Iead to laziness!
45. In conclusion, the advantages of studying abroad outweigh its disadvantages.
46. Now, I think it is really successful experience, and I totally understand what labor means.
47. From this earthquake, I realized that the power of the mass is endless.
造句：In 1951 Chairman Mao said in Nan Jing that the power of the mass is endless.
48. If you have spare time to visit my hometown, I'd be more than happy to be your guide.
49. Nowadays, both teachers and parents worry a great deal about the student's using the Internet.
50. Views on the issue in question vary from person to person.