41. I was admitted to a key university for which few dared to sign up.

　　改进: I was admitted to a key university to which few dared to apply.

　　42. Luckily, he recognized an American professor.

　　改进: Luckily, he knew an American professor.

　　43. They will learn the bad habits.

　　改进: They will develop bad habits.

　　44. In this continued process, people make progress.

　　改进: In this cycle, people make progress.

　　45. Lastly, higher education is equal to higher salary.

　　改进: Lastly, higher education means higher salary.

　　46. By making friends who are different from ourselves, we can make up for deficiency.

　　改进: By making friends who are different from ourselves, we can make up for our shortcomings.

　　47. A wrong decision will bring even worse fact.

　　改进: A wrong decision will bring even worse result.

　　48. You spend all your life to fulfill your willing.

　　改进: You devote all your life to the fulfillment of your dream.

　　49. Children should be taught disciplines insgroupsto avoid unnecessary lost.

　　改进: Children should be taught discipline insgroupsto avoid unnecessary loss.

　　50. I felt alone.

　　改进: I felt lonely