14.This road is being widened.
15. the pyramids were built by the anciet Egyptians.
16.Waste paper can be recycled to save natural resources.
17.the test has to be finished the test in 20 minutes by that boy.
18.the test has been finished the test in 20 minutes by that boy.
19.The environment is polluted by Throwing rubblish
Công thức bị động:
→HTĐ:S+am/is/are+Ved/3+(by O)
→QKĐ:S+was/were+Ved/3+(by O)
→HTHT:S+has/have been+Ved/3+(by O)
→ĐTKT:S+have/has to+be+Ved/3+(by O)
Học Tốt !!!
