1. The cake was eaten by the dog. (过去式)

2. The students worked hard on their project. (过去式)

3. The teacher gave a lecture to the class. (过去式)

4. The company earned a profit last quarter. (过去式)

5. The boy ran away from his mother. (过去式)

6. The girl bought a new dress last week. (过去式)

7. The sun set over the city. (过去式)

8. The dog barked loudly at the mailman. (过去式)

9. The boy swam in the pool on Saturday. (过去式)

10. The customer service rep answered the phone yesterday. (过去式)

11. The family vacationed in the mountains last summer. (过去式)

12. The workers union negotiated a new contract with the company. (过去式)

13. The students attended a concert last night. (过去式)

14. The doctor diagnosed the patient with cancer. (过去式)

15. The chef prepared a delicious meal for us. (过去式)

16. The train left on time for New York. (过去式)

17. The athletes practiced their routines every day. (过去式)

18. The manager met with the team yesterday. (过去式)

19. The student wrote a paper for the class. (过去式)

20. The teacher typed the student's essay. (过去式)

21. The family had a big party last weekend. (过去式)

22. The police arrested the suspect yesterday. (过去式)

23. The children played in the park yesterday. (过去式)

24. The man bought a new car last week. (过去式)

25. The woman earned a promotion at work. (过去式)

26. The students gathered in the auditorium yesterday. (过去式)

27. The chef fired the stove to cook the dinner. (过去式)

28. The dog tracked the thief yesterday. (过去式)

29. The family moved to a new house last month. (过去式)

30. The police responded to the break-in yesterday. (过去式)

31. The student read a book for class yesterday. (过去式)

32. The workers completed the project yesterday. (过去式)

33. The man sold his old car to a friend. (过去式)

34. The woman cancelled the meeting yesterday. (过去式)

35. The children watched a movie last night. (过去式)

36. The teacher showed the video yesterday. (过去式)

37. The family visited a museum yesterday. (过去式)

38. The man bought some flowers for his wife. (过去式)

39. The student wrote a letter to his friend yesterday. (过去式)

40. The workers union ratified the new contract. (过去式)

41. The children drew a picture yesterday. (过去式)

42. The teacher summarized the article yesterday. (过去式)

43. The man received an email yesterday. (过去式)

44. The family celebrated their anniversary yesterday. (过去式)

45. The police arrested the intruder yesterday. (过去式)

46. The student presented his project to the class yesterday. (过去式)

47. The workers increased their demand yesterday. (过去式)

48. The family gathered for dinner yesterday. (过去式)

49. The man bought a new pair of shoes yesterday. (过去式)

50. The woman attended a lecture yesterday. (过去式)。