1. The children weren't probably looked after

2. A great deal of tea in England is drunk

3. Is her dog often taken for a walk ?

4. She said she had gone to the cinema the day before

5. They said they had been in London the week before

6. John apologized his mother for having broken his mother's vase

7. How long have you had it ? 

8. I haven't had such a delicious meal.

9. The last time I saw him was 8 days ago

10. She has driven for 1 month

11. We have eaten since it started to rain

*Mình viết S1, S2 cho dễ hình dung chứ S2 ở câu chủ động là O)

1. The children weren't probably looked after.

S1+did (not)+V+S2

->S2+was/were (not)+P2+by O

2. A great deal of tea in England is drunk.

S1+V+S2

->S2+am/is/are+P2+by O

3. Is her dog often taken for a walk?

Do/Does+S+V+O?

->Am/Is/Are+S2+P2?

4. She said she had gone to the cinema the day before.

S+said+"S+V(chia theo ngữ cảnh)+time

->S+said+(that)+S+V(lùi thì so với câu trực tiếp)+time(lùi)-cái này phải đọc chuyên đề)

5. They said they had been in London the week before.

Tương tự câu 4

6. John apologized his mother for having broken his mother's vase.

S+said to+sb+sth

->S+apologized+sb+for+HTHTTD+sth)

7. How long have you had it? (HTHT)

8. I haven't had such a delicious meal.

This is the ... time+S+V2+sth

->S+hasn't/haven't+P2+sth (before)

Ở câu này có "such" thì không dùng "before"

9. The last time I saw him was 8 days ago.

S+hasn't/haven't+P2+O+for+time

->The last time+S+V2+O+was+time

10. She has driven for 1 month. (HTHT)

11. We have eaten since it started to rain. (HTHT)