18. Vietnam is one of the countries of the Association of South East Asian Nations.
Association of South East Asian Nations: Hiệp hội các Quốc gia Đông Nam Á
19. Please give me a ring to let me know whether you can come or not.
Give sb a ring = telephone sb
20. I am writing to tell you about my holiday here in Halong.
21. The word jeans comes from a kind of material that was made in Europe.
22. One of the advantages of owning a car is its comfort.
23. She is looking forward to seeing her boyfriend again.
(to) look forward to + V.ing: chờ mong làm điều gì
24. The Internet is a very fast and convenient way for me to get information.
25. We had decided to go for a short walk before we sat down for lunch.
Before S + V(ed), S + had + P II +...
26. We spent a week going seaside last summer.
spend + V.ing
27. When she was having a bath, telephone bell rang.
28. It took him several weeks to recover from his illness.
It takes sb + length of time + to do sth.
29. There will be no sunshine in this area a month from now.
30. The door is so heavy that the little boy cannot push it open.
S + be/ V + so adj/ adv + that + clause.
31. Last week, she took her children to Hanoi Zoo where they could see animals and birds.
32. Would you like me to post the letters for you?
33. I wish I had been sent to England when I was young.
34. It was kind of you to invite me to come to see you while we were having holidays in Halong.
It + be + adj + of + O + to V
35. It is necessary for scientists to learn foreign languages.
It + be + adj + (for O) + to V + ...