27. major( chuyên ngành)

28. for( đi với well-know)

29. linked

30. 

31. analytical mind: đầu óc có tính phân tích

32. having been planted

33. have been surfing( có all day là dấu hiệu của hthttd)

34. aren't there

35. recognised/geological

36. survival( sự sống  sót)

37. wonders

38. take/to

39. heat-related

40. stlolen

II.Writing

1. we decided to cut down on carbon footprints after having seen people suffer global warming consequence 

2. he denied taking responsibility for his company's damage to to the area

3. he was admired to donate a lo of  money to......

4. they were praised for cutting down their carbon footprints

5. we remember having advised you how to cut down....

6. some scientists accused of having distorted the effect...

7. lam's mother promised to buy a new bicycle for lam if she stops eating junk food