1. No sooner did I shut the door than I realized I'd let the key inside. ( Cấu trúc: No sooner + đảo ngữ...+than+ vế cũ...)

2. So tired was I that I don't feel like eating. ( Dạng đảo cấu trúc câu )

3. This motorbike has to be paid a lot (by you). ( Passive Voice)

4. Laurence last saw his sister when she left for Japan 

1. Scientific     2. Contaminate     3. Chemical      4. Impolite     5. Inventions     6. Legend     7. Verbial     8. Accommodate     9. Exploration     10. Named     11. Renewing   12. Touching   13. Flooded          14. Symbolizes  15. Economic     16. Scientific