In this task, given a sentence in the Japanese language, your task is to convert it into the English language.

閉鎖の期間は不定だと考えられているが、少なくとも２００９年７月１日の会計年度の終わりまで続くだろう。
The closures are considered indefinite but will last at least through the end of the fiscal year, July 1, 2009.