1. that the video would pause if I pressed on that button. (câu điều kiện Loại 1=> loại 2)

2. if he had known they had been honest, he would have gladly lent them money. (loại 2=> loại3 )

3. if I had a mobile phone, I would had to check that it was turned off. (loại 1 => loại 2)

4. he would be angry if it turned out that I was wrong. (loại 1 => loại 2)

5. him to take another sandwich if he was hungry.

6. me to choose medicine to study at college.

7. Pamela to give him a ring if she changed her mind. (loại 1 => loại 2)

8. (bỏ me) if the disease was untreated, it could lead to brain damage. (loại 1 => loại 2)

9. if Brenda had been in time for work, her boss wouldn't have been annoyed. (loại 2=> loại3 )

10. if she complained about him, he would get into trouble with his teacher. (loại 1 => loại 2)

Lưu ý: các câu gián tiếp: động từ lùi 1 thì so với câu trực tiếp (riêng QKHT giữ nguyên)