考试前我花了一整天复习课堂笔记。

I spent the whole day ___revising my class notes before the test.

老师建议我在提交论文前再修改一下。

The teacher suggested I ___revise my essay before submitting it.

在收到客户反馈后，我们不得不修改产品设计。

After receiving customer feedback, we had to ___revise the product design.