booksale是可数名词吗

　　Our school is having a book sale next week.

　　我校下星期将进行图书廉价出售。

　　Our school is having a book sale next week.

　　我校下周将举行图书廉价出售。

　　One day, I donated most of the paperbacks to a book sale.

　　一天，我将绝大部分的平装书捐给了一家二手书店。