| 1. | We do morning exercises before classes begin
在上课开始之前，早操是我们必要做的。 |
| 2. | Homework is to be handed in before class is over
作文必需在放学前交上来 |
| 3. | Teachers must adjust their mood properly before class
教师必须在课前调整好自己的情绪 |
| 4. | The influence of student ' s mental activity before class on pe
课前心理活动对体育课的影响 |
| 5. | The development of five - minute oral training before class
试谈师范院校学生口语能力的培养 |
| 6. | Did you revise / go over the lessons before class
课前功课复习了吗？ |
| 7. | May i suggest that you finish it before class is over
我建议你们在下课前完成这个练习，行吗 |
| 8. | Now the reason you two are here before class officially starts
你们在上课前来这里的原因是。 。 |
| 9. | Every day before class begins the teacher always calls the roll
每天在开始上课前，老师经常要点名。 |
| 10. | The teacher wished us all a merry christmas before class was dismissed
下课时，老师祝愿我们过个愉快的圣诞节。 |
