Turn these sentences into passive voice:
15. Farmers always make products from corn->
......................................................................
16. My brother always invent telephones………………………………………
17. Lan often do the chores on sundays-> ………………………………………………
18. They cook the meal themselves-> ……………………………………………
19. Tan usually buy fish and vegetables for her mother-> ………………………
20. We don't use the saucepan and frying pan-> ………………………………………
21. Do you call Aunt Hoa every night?-> …………………………………………
22. Does your mother put the rug between the armchair and the couch?-> ……………
23. The mother doesn't let children play in the kitchen-> ……………………………………
24. Children do not play with matches-> ………………………………………………
25. My younger sister always empty the garbage in early morning-> ………………
26. Hung cleans the fish tank every afternoon-> ……………………………………………
27. Does our teacher do the experiment this afternoon? -> …………………………
28. The repairmen often fix the washing machine-> ………………………
29. Do these boys draw that picture?-> ………………………………………………
30. The old woman doesn't light the lamp in the evening->……………………………
31. My grandmother sometimes tell us the traditional stories-> ………………………………
16.Many lakes and rivers have been destroyed by pollution from factories
17.My brother’s exercises haven’t been finished
18.Oil has been discovered at the NORTH Pole
19.Another villa has just been bought by Nam’s father
20She hasn’t been seen since we left school
16. Many lakes and rivers have been destroyed by pollution from factories.
17.His exercises haven't been finished by my brother.
18.Oil at the North Pole has been discovered.
19.Another villa has just been bought by Nam's father.
20.She hasn't been seen (by us) since we left school.