Question

Passive voice:
13. Careless driving can cause many accidents.
-> Many accidents............
14. People are widening this road.
-> This road............
15. The ancient Egyptians built the pyramids.
-> The pyramids.......
16. People can recycle waste paper to save natural resources
-> Waste paper...................
17. That boy has to finish the test in 20 minutes.
-> The test............
18. . That boy has finished the test for 20 minutes.
-> The test............

Answer 1

Passive voice:
13. Careless driving can cause many accidents.
-> Many accidents......cab be caused......
14. People are widening this road.
-> This road...is being widened .........
15. The ancient Egyptians built the pyramids.
-> The pyramids....were built by The ancient Egyptians...
16. People can recycle waste paper to save natural resources
-> Waste paper....can be recycled to save natural resources ........
17. That boy has to finish the test in 20 minutes.
-> The test....has to be finished by that boy in 20 minutes........
18. . That boy has finished the test for 20 minutes.
-> The test....has been finished by that boy for 20 minutes........

Answer 2

Passive voice:
13. Careless driving can cause many accidents.
-> Many accidents can be caused by careless driving.
14. People are widening this road.
-> This road is being widened.
15. The ancient Egyptians built the pyramids.
-> The pyramids were built by the Ancient Egyptians.
16. People can recycle waste paper to save natural resources
-> Waste paper can be recycled to save natural resources.
17. That boy has to finish the test in 20 minutes.
-> The test has to be finished by that boy in 20 minutes.
18. . That boy has finished the test for 20 minutes.
-> The test............( Giống câu trên bạn nhé)