4. 學(xué)生們不得不回到教室做作業(yè)。

The students go to the classroom and did their exercises.

3. 他經(jīng)常向我抱怨有太多的作業(yè)。

He often me  homework.

2. 在東漢時期，蔡倫發(fā)現(xiàn)了造紙的新方法，然后人們開始用紙制作風(fēng)箏。

In the Han , Cai Lun a new make paper,and then people started to make  paper.

1. John決定單獨進人森林。

John  the forest .

10. My father told me that the light (travel) faster than the sound.

9. You look tired,my dear. I think you should stop (work) and sleep for a while.

7. I'm sure you (pass) the exam.

8. I think Wu Bin (practise) volleyball on the playground at the moment.

6. Didn’t you see that under the table (be) three pieces of cake?

5. What you (complain) about to the manager just now?

3. —When she (get) here? --In three hours.

4. He left the office after (lock) the door.