annotate|annotated|annotating

请在阅读时在重要段落旁边做批注。

Please ___annotate the important paragraphs as you read.

老师在学生的论文上做了详细的批注，指出需要改进的地方。

The teacher ___annotated the student's essay to point out areas for improvement.

教授在批改论文时，总是仔细地为学生的引文添加注释。

The professor spent time carefully ___annotating the students' citations while grading their papers.