Chuyển câu chủ động -> câu bị động: 1. They are using the computer at the moment. 2.The teaches has invited all the student in the class. 3.they have just sold that old house.

Chuyển chủ động -> Bị động

1. They are using the computer at the moment.

⇒ The computer is being used by them at the moment.

Cấu trúc - Hiện tại tiếp diễn: S + tobe + being + V3 + ( by O ).

2. The teaches has invited all the students in the class.

⇒ All the student has been invited the class by the teacher.

-> Hiện tại hoàn thành.

3. They have just sold that old house.

⇒ That old house has just sold by them.

Cấu trúc -  Hiện tại hoàn thành: S + have / has + been + V3 + ( by O ).

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