Question

Change the following sentence into active/passive
29. They have finished reading the books.
30.
He lets me go.
31. Which books have they published?
32. They are going to observe the day.
33. The house offers a poor show.
34. A village doctor renders great service to the villagers.
35. We use river water for various purposes.
36. Whose pens was he writing with?
37. Whose car will he drive?
38. From where did he buy the pens?
39. Why has he plucked the green mangoes?
40. Let him do the work.​

Answer 1

Answer:

29. reading the books have finished by them.