1. I’m sure they didn’t plan this project.

⇒ They can't have planned this project.

2. People say he was dismissed last week.

⇒ He is said to have been dismissed last week.

3. “I’m sorry I missed the appointment with the doctor this morning.” he said.

⇒ He apologised for missing the appointment with the doctor this morning.

4. Why don’t you do your homework before going to class?

⇒ If I were you, I would do my homework before going to class.

5. This motorbike is cheaper than I thought I would be.

⇒  This motorbike is not as expensive as I thought it would be.

1 They can't have planned this project.

phỏng đoán chuyện quá khứ: cannot have +V3

2 He is said to have been dismissed last week.

bị động:S2+tobe+V2/ed

3  He apologised for missing the appointment with the doctor this morning.

apologize for+Ving

4 If I were you, I would do my homework before going to class.

câu khuyên bảo:If I were you, I would + V

5 This motorbike is not as expensive as I thought it would be.

so sánh :not as...as=không giống