1. They're such easy questions that everyone can answer them

- Such + a / an + adj + N + that + S + V = S + tobe + so + adj + ( for sb ) + to V: Quá ... đến nỗi mà ...

2. The boy, whose parents died in a traffic accident, will receive some money to continue his study

- Whose + N: Đại từ quan hệ thay thế cho cho danh từ chỉ người ( quyền sở hữu cái gì )

- N + whose + N + V / S + V + O

3. Motorbikes are being produced in Vietnam

- Bị động HTTD: S + am / is / are + being + V3 / ed + ( by O )

4. If I had been there yesterday, I would have known who he had been

- Đk loại 3: If + S + had + V3 / ed, S + would have + V3 / ed

-> Diễn tả sự việc không có thật ở quá khứ

5. Unless you try hard, you can't pass the examination

- Đk loại 1: If + S + V-s/es, S + model verbs ( HT ) + V - inf

- Unless = If not: Trừ khi, nếu không