1, We stayed in a hotel last summer. It was heated by renewable energy sources.

→ The hotel where we stayed last summer was heated by renewable energy sources.

- Dùng MĐQH where: để chỉ địa điểm, nơi chốn.

- CT: ….N (place) + WHERE + S + V …. 

2, You should not approach the suspect, who is armed and dangerous.

→ Under no circumstances should you approach the suspect, who is armed and dangerous.

- Dùng cấu trúc: Đảo ngữ (phủ định)

- CT: Under no (any) circumstances + trợ động từ + S + V chính...

3, As well as stopping the mugger, he also drove the victim home.

→ Not only did he stop the mugger, but he also drove the victim home.

- Dùng cấu trúc: Đảo ngữ 

- CT: Not only + trợ động từ + clause..., but also … 

4, Experts have estimated that more than half the world can now access the Internet.

→ It has been estimated that more than half the world can now access the Internet.

- Dùng cấu trúc: Bị động khách quan

- CT: It + tobe + Vp2 (said, thought, believed, known, estimated...) that + S + V

Hoặc It + has been + Vp3 (said, thought, believed, known, estimated...) that + S + V

5, If the big industrial manufacturers hadn't been so greedy, we wouldn't be in this situation now. 

→ But for the greed of the big industrial manufacturers, we wouldn’t be in this situation now.

- Chuyển [greedy (adj): tham lam → greed (n): lòng tham] để trở thành cụm danh từ.

- Dùng cấu trúc: (but for) trong câu điều kiện

- CT: CĐK 2: But for + N/V-ing, S + would/could/might/ (not)… + V

Hoặc CĐK 3: But for + N/V-ing, S + would/could/might/ (not) … + have VPP

1, 

→ The hotel where we stayed last summer is heated by renewable energy sources.

2, 

→ Under no circumstances should you approach the suspect, who is armed and dangerous.

3, 

→ Not only did he stop the mugger, but also driving the victim home.

4, 

→ It is estimated that more than half the world can now access the Internet.

5, 

→ But for the greed of the big industrial manufacturers, we would not be in this situation now.