I:
25. come across
26. are lot of difference between
27. be made up by
28. throw away those plastic bags
29. broke down
30. work resulted in
31. a number of
32. is full of
II:
33. off
34. In
35. from
36. in
37. at
38. from
39. on
40. for
III:
41. longest
42. fascinating
43. identically
44. conclusion
45. scientist
46.
47.
48. chemistry
# xin 5 sao vs ctlhn cho nhóm ạ
* có 2 câu mk ko bik làm huhu, xl ạ