✔Rewrite the sentences, using perfect gerunds.
7.After she raplaced all the light bulbs in her house with LED lights, she same a lot of money on her electricity bills.
--> Having.............
8. Sam had not worked hard enough in his previous job.He regretted it.
--> Sam regretted..............
9. Someone had cut down the oldest tree in the park. The police suspected Mike of doing it.
--> The police suspected.........
10. Since the farmers used too much chemical fertiliser on their farm, they now have to drink polluted water.
--> Having............
11. Denis had taken an active part in the Green Summer activities.He was rewarded for that.
--> Denis was..........
12. After the students had learnt about the benefits of recycling and reusing ,they started collecting waste paper, bottles, and cans to recycle and reuse.
--->Having.....................
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Sinh Học lớp 12
