这些德国人在到襄阳前就已经习惯吃牛肉面了。（be）
before they came to Xiangyang.
请告诉学生们别忘了在考试前把电子产品递给老师。（pass）
Please tell the students to the teachers before the exam.
我进教室的时候学生们正在讨论物理竞赛。（discuss）
The students when I came into the classroom.
她每天总是在晚饭后完成她的家庭作业。（finish）
She after dinner every day.
Please reply in writing by Saturday.