`=>`

`VI`.

23. True

24. False

25. True

26. False

27. B

28. A

`VII`.

29. dissapointed

30. effectively

31. neccesity

32. conserving

33. enviromental

34. pollution

`VIII`.

35.will be / the trees / we / there / big floods / in the forest / If /every year / cut down /, /.

→ If we cut down the trees in the forest, there will be big floods every year.

36.the entrance exam / that / Her parents / to FPT university. / were / she / pleased / passed

→ Her parents were pleased that she passed the entrance exam to FPT university.

`IX`. 

37.Save wood and paper or we'll destroy our forests some day.

→ If we don't save wood and paper, we'll destroy our forests some day.

38. Thinking of making toys from used paper was his interesting idea.

→ It's interesting that he thought of making toys from used paper.

39.The river is too dirty for us to swim in.

→ As the river is too dirty, we can't swim in.

40.Phong was very good at swimming.

→ Phong swam very well.

23. True

24. False

25. True

26. False

27. B

28. A

29. dissapointed

30. effectively

31. neccesity

32. conserving

33. enviromental

34. pollution

35  If we cut down the trees in the forest, there will be big floods every year.

36 Her parents were pleased that she passed the entrance exam to FPT university.

37 If we don't save wood and paper, we'll destroy our forests some day.

38 It's interesting that he thought of making toys from used paper.

39  As the river is too dirty, we can't swim in.

40  Phong swam very well.