50. In spite of writing carefully, Vinh made a few mistakes in his essay.

` @ `Mệnh đề chỉ sự nhượng bộ:

- Although / though / even though + S + V, S + V + O: Mặc dù ...

- In spite of / Despite + N / V - ing, S + V + O: Mặc dù ...

51. Hoa suggested having a separate wastebasket for wastepaper.

 Why don't + S + V - inf?: Gợi ý làm gì

- = S + suggest + V - ing

52. He was an active participant in the fight against deforestation.

- S + V + adv

- S + be + a / an + adj + N

53. Unless you work hard, you can't expect to pass the exam.

- Unless = If not: Nếu không, trừ khi

- If 1: If + S + V(s/es), S + will / can / shall... + V - inf

54. Our teacher suggested that sheets with single printed pages should be used for drafting.

- S + suggest + that + S + ( should ) + be + V4 / ed + ( by O ) -> Bị động

- Bị động model verbs: S + model verbs + be + V3 / ed + ( by O ).

- Let's + V - inf: Hãy làm gì

55. The villa in which the actress lives is very luxurious.

- N vật + which + S + V  / V

56. Although he was tired after the long drive, it did not prevent him from finishing his work on time.

- Mệnh đề chỉ sự nhượng bộ: Although / though / even though + S + V, S + V + O: Mặc dù ...

- Prevent sb from V - ing: Ngăn chặn, ngăn cản ai làm gì.