She set goals for the level of her exam scores during her school days and always managed to accomplish her goals. Her past experience of working at a hospital enabled her to improve her approach to looking after people. She is kind and sincere and has been working at the current company for over ten years and become a competent employee who is able to develop herself and her company.

If you are looking for corrections, you should use the "Notebook" section of this website. It allows people to highlight what needs corrected, so you can understand it better. Sentence 1: Using "rank" without a particle, in this sentence, makes it appear to be an adjective, instead of a noun, which would imply a bad odor or smell, rather than a level of accomplishment. Also, exam should have a particle to show it's a noun too. It would be ok if you added a few words and reordered it to say: "She set goals for the rank she wanted to score on the exam, during school days, and always managed to accomplish it." Sentence 2: This one doesn't have a clear subject, and needs to be reworded. I'm not sure what you wanted to say with, "service mind", but I assume you mean her "customer service skills". Also, I assume, by saying "of cherishing people", you meant that "she" is cherishing people, but, in this sentence, cherishing is describing people, so the people are cherishing, not her. "She gained experience by working at a hospital, in the past, which enabled her to grow her service skills to cherish people." Something like that. Sentence 3: The first part is past tense ("has been"). but you changed over to present tense ("became") later on. This is a common error. The rest is mostly correct, but it sounds better to use "her" instead, as it is "her personality" and "her company" you are talking about. Also, "both" is not needed here. "With her kind and sincere personality, she has been working at her current company, for over ten years, and has become a competent member, that can develop her company and herself." Overall, it is very close, and it is completely understandable, which is the most important part of speaking a language. Good luck!

Yes. And yes they do.