chuyển sang câu bị động
77. My mother bought that washing machine in 2010.
⇒ That washing machine was bought by my mother in 2010.
(S + have/has + been + P2 + by O)
78. Her father was planting different kinds of flowers in the garden.
⇒ Different kinds of flowers in the gardern was being planted by her father.
(S + was/were + being + P2 + by O)
79. The Prime Minister is making a speech at the moment.
⇒ A speech is being made by the Prime Minister at the moment.
(S + am/is/are + being + P2 + by O)
80. How many days did she spend finishing the work?
⇒ How many days were the work spent finishing by her?
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