【正确答案】 April 20
Dear Mr. Wang,
I am pleased to have got your letter of April 15, which said a week long art festival will be held in your college in June this year.
I am very interested in this activity, but I regret to say that we have a fixed budget for sponsorship each year and the sponsorship of new items will not be considered until next year. I hope you can understand it.
I suggest that you contact us again next year. I hope you will have a truly fruitful art festival.
Yours faithfully,
Li Ming
Manager