I.
1. C /d/ # /t/
2. A /i/ # /e/
II.
3. A 3#2
4. D 1#2
III.
5. B because of
because of N/Ving
6. A off
take the clothes off: cởi quần áo
7. D repaired
8. A if
9. A was stolen
10. D was waiting
11. A natural
12. B with doing
be fed up with N/Ving: chán ...
IV
14. C - sit down
15. B - so
16. C - the wonders
V
17. A Don't worry
18. C Take it twice per day
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VI
19. D raise = tăng
20. B comes up = xảy đến
VII
21. C satisfied >< thất vọng
22. B childish >< trưởng thành
VIII
23. D heating
24. A efficient
25. D save
26. A off
27. A amount