On the day of our final exam, we heard that the bookstore had changed its policy and would buy back our business-management textbooks.
期末考试那天，我们听说书店改变政策，要回收我们的企业管理课本。
Before class, several of us dashed over to the store and sold our books.
上课前，我们几个人就一古脑儿跑到书店把书给卖了。
We were seated and waiting for the test when our professor announced that, considering the difficulty of the final, it would be an open-book exam.
我们在班里坐下来，等着考试。这时，我们的教授大声宣布说，考虑到期末考试的难度，要开卷考试。
