1. The classroom was so quiet that there was no sound.

2. The classroom is as lively as a market.

3. The classroom is as quiet as the forest at night.

4. The classroom was so silent that you could hear a pin drop.

5. The classroom was crowded and noisy like a car accident scene.

6. The only sound left in the classroom was the sound of the pen tip touching the paper.

7. The classroom is really lively, just like a vegetable market.

8. The classroom is so quiet that you can hear a pin drop.

9. The students are discussing the problem enthusiastically in the classroom.

10. The program in the classroom is in full swing.

11. The classroom is noisy like little bees

12. The classroom is like a mosquito nest, and the students are all whispering.

13. The classroom is so quiet that you can even hear the rustling of pencils.

14. The classroom was so quiet that you could hear a pin drop.

15. The classroom is so quiet, it’s like walking into a silent world!

16. The classroom was as noisy as a holiday shopping spree.

17. The classroom was as quiet as if the air had condensed, and there was no sound.

18. The students were unusually quiet. I heard the faint ticking of the teacher’s watch.

19. The classroom was so quiet that you could even hear a pin drop!

20. The classroom was so quiet that you couldn’t even turn the book or touch the tip of the pen. The sound on the paper cannot be heard either.

21. The classroom was silent and the ticking sound of the watch was clearly audible. I was extremely nervous.

22. In the writing class, the teacher was completely silent, and even the sound of writing could be heard clearly.

23. The temperature in the classroom reached the boiling point, and the students were all chattering and laughing.

24. The noisy classroom suddenly became quiet, as if it had been muted, and there was no sound.

25. The surroundings were so quiet as if time had stood still. It was as if one movement could break this calmness.

26. After class, the classroom becomes a place where students show off their various martial arts skills. It’s so lively!

27. The classroom was extremely quiet. The students were all doing their homework, as if they could hear the rustling of silkworms eating mulberry leaves.

28. On the upper left side of the blackboard is a 29-inch Changhong color TV, which is a good partner for us to study.

29. From time to time, the sound of the teacher's lecture and the sound of reading can be heard in the classroom, like a harmonious sonata.

30. The classroom is so lively today, and our classroom is so clean. We picked up the small rags and cleaned them happily.

31. The classroom was completely silent. I seemed to be able to clearly hear the rhythmic breathing of the classmate in the southeast corner.

32. All the students in the class were reading their homework, and no one made any noise. You could even hear a pin falling on the ground.

33. The sun’s rays shine on the large glass of the classroom, flickering like a layer of gold powder.