Đáp án của mình:
1C 2B 3C 4D 5B 6C 7C 8A 9C 10B 11C 12C 13A 14A 15D
16. problem
17. benefit
18. millions
19. employment
20. reduced
21. engineers
22. such
23. polluting
29B 30C 31A 32B 33D
34. David
has been cooking /
has cooked dinner for 30 minutes
35. Mai asked Lan if she often went swimming in the winter
36. Would you mind cleaning the door for me?
37. The project should be completed within a year
38. I am under the impression that the work has already been finished
39. Mai got up early yesterday so as to catch the first bus
40. The manager have the report written by his secretary last Tuesday
Nếu sai thì chỉ mình với nhé
@Aosora Chị có giống đáp án của em không?