which sentences is better? A or B , and why? A, In my opinion, students who can fouces in class will get in exams good scores in return to their hard work. B. In my opinion, students who can fouces in class will get good scores in exams in return to their hard work.

pls help to correct, thanks Thank you for your willing to modify few terms in this agreement. I believe we have reached an agreement according to our current contract. To move forward this project, I need you sign the agreements enclosed by email with two copies. One copy should be kept by you and another copy should be posted to our office before this Friday, the last day of working day. Pls let me know if you have any question. Looking forward to cooperation with you.