1. Alex is preparing that report-

- That report is being prepared by Alex

2. The teacher is going to explain the lesson

- The lesson is giong to be explained by the teacher

3. Kathy had returned the book to the library

- The book had been returned to the library by Kathy

4. Does professor Jackson teach that course?

- Is the course taught by professor Jackson?

5. Is Mrs. Brown painting your house?

- Is your house being painted by Mrs. Brown?

6. Doctor Ikeda developed that theory

- That theory was developed by doctor Ikeda

=> S2 + TO BE + PII

1.  Nếu S trong câu chủ động là: they, people, everyone, someone, anyone, etc => được bỏ đi trong câu bị động.

2. Nếu là người hoặc vật trực tiếp gây ra hành động thì dùng 'by', nhưng gián tiếp gây ra hành động thì dùng 'with'

#trinhphuong17321.