답변을 얻은 뒤 반드시 감사의 덧글을 남기고, 좋은 답변은 채택해 주시는 센스...
질문할 때 예의를 지키시기 바랍니다.(빨리... 고수분만..... 이런 식의 요구는 자제 바랍니다.)
질문 내용 :

아래 지문에서 조건의 부사절에서 미래는 현재동사로 나타낸다고 알고 있는데 will을 쓰는 문장이 있습니다. 비상교육의 한끝교재 외국어 영역 종합편인데 이해가 잘 되지 않습니다. 이게 예외적으로will을 쓰게 되는 특별한 경우인건지 모르겠습니다.
The city of Carrera is celebrating its cultural diversity during Cultural Awareness Week, July 11-18. This is your opportunity to get some inexpensive advertising with a large audience. One of the highlights of the weeklong celebration is the Dance Around the Planet performance scheduled for July 13. In order to supply decorations, programs, and other equipment, we need businesses willing to sponsor the event. If you will send your donation with the completed business information form enclosed with this letter, you will receive some terrific advertising in return. Sponsorship of $100 or more earns you a 2\'×3\' advertisement in the Dance Around the Planet program. Sponsorship of less than $100 reserves you a place in the alphabetical listing of sponsors on the back page. Thank you for your continuing support of our community.