английский язык. прошу помощи у знатоков. 10баллов

в общем напечатала текст: а именно предложения в которых сомневаюсь какую форму поставить. в общем помогите пожалуйста раскрыть скобочки I (write) to you a month ago, (ask) about admission requirements into your school. Tree weeks ago I (receive) reply with an enrolment form attached, which I (fill up) and (return) without delay. Since then, however, I (hear) nothing and I (begin) to wonder if my application (go) astray. I (ask) you (check) that you (receive) it and if you have not, (appreciate) if you (send) me another enrolment form. If, on the (receive) my application but (not decide) whether to accept me as a student or not, please (tell) me when I may expect to hear your decision. Finally, if you already (refuse) my application, I (like) to be informed as soon as possible because if I do not get into your business school I (have) to apply to another and the sooner I (do) this, the better chance I (have) of being accepted.