Khoan, đây là 1 bài báo mà :v?

Change the following sentences into the passive form: (Chuyển đổi sang câu bị động)

19. They do their exercises every day.

→ 

20. They will sell their car next month.

→ 

21. Emma ordered this air ticket for her mother.

→ 

22. She has sent the Christmas cards to her family.

→ 

23. He left his relatives seven million dollars.

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