5. I was eating a sandwich  

=> A sandwich was being eaten( by me) { Câu bị động của thì QKTD. Cấu trúc: S+was/were+being+V3/ed}

6. I was writting an important report.

=> An important report was being written(by me) { Câu bị động của thì QKTD. Cấu trúc: S+was/were+being+V3/ed}

7. Mr.Sam was reading newspaper.

=> Newspaper was being read by Mr. Sam  { Câu bị động của thì QKTD. Cấu trúc: S+was/were+being+V3/ed}

8. She was not cleaning her room at 9 o'clock yesterday evening

=> Her room wasn't being cleaned at 9 o'clock yesterday evening { Câu bị động của thì QKTD. Cấu trúc: S+was/were+being+V3/ed}

9. We were washing the dishes when you called.

=> The dishes were being washing when you called. { Câu bị động của thì QKTD. Cấu trúc: S+was/were+being+V3/ed}.

Chúc  bạn học tốt nhé!

5. A sandwich was being eaten by me.

6. An important report was being writen by me.

7. Her room was not being cleaned at 9 o'clock yesterday evening.

8. Newspaper was being read by Mr. Sam.

9. The dishes were being washed by we when you called.

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Công thức câu ở dạng QKTD:

- Câu CĐ: S + was/were + V-ing+ O

- Câu BĐ : S (S ở BĐ này là O của CĐ) + was/ were + being + V/ed + by + O (O ở BĐ này là S của CĐ)

Chú thích: 

- BĐ : bị động

- CĐ : chủ động