1. He greatly regretted not seeing Andrey on her trip to London.
- regret V-ing: hối tiếc điều đã làm.
2. The accident is thought to have been caused by human error.
- It is thought that... = S + is + thought + to V.
3. The waiter recoomend me to try the chicken Marengo.
- recommend sb to V: khuyên ai làm gì.
4. Scarcely had I solved one problem when I was faced with another.
- Đảo ngữ với trạng từ chỉ mức độ: Scarcely + trợ động từ + S + V + when... (Vừa mới... thì... )
5. Had it not been for his help, we would have been in worse trouble.
- Đảo ngữ câu điều kiện loại 3: Had it not been for + N... : Nếu không có...