23.pollution

24.satisfied

25.considered

26.dangerous

27.poisoned

II

33.This castle was said to build in the 19th century.

34.Although the weather was bad,we arrived on time.

35.If I though,he should take the course.

36.Nam finds playing games interesting.

23. polluted

24. satisfied

25. consideration (n): sự xem xét

Sau adj là noun.

26. dangerous (adj): nguy hiểm

27. scientifically (adv): khoa học

Bổ nghĩa cho adj dùng adv

28. poisoning

có are -> thì hiện tại tiếp diễn

`VII`

33. People say that this castle was built in the 19t" century.

> This castle is said to be built in the 19t" century.

Câu bị động chủ ngữ giả.

34.Despite the very bad weather, we arrived on time.

>Although the weather was very bad, we arrived on time.

35 I think he should take the course.

> If I were him, I would take the course.

36. Nam's interested in playing sports.

> Nam finds playing sports interesting.

`VIII`.

1. We can save natural resources by using solar energy instead of coal, gas and oil.

instead of: thay vì

2. She will pay less if she uses two energy-saving bulbs.