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gợi ý đáp án
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Câu 29. preparation
Câu 30. experienced
Câu 31. beautify
Câu 32. effective
Câu 33. assistance
Câu 34. successfully
Câu 35. Every one of us should follow the example set by Uncle Hồ, our beloved leader.
Câu 36. Studying abroad gives students opportunities to learn about different cultures.
Câu 37. The children are keen on making models of animals in their free time.
Câu 38. If I were you, I would go to the dentist twice a year.
Câu 39. It has been two years since she last participated in a competition.
Câu 40. Because he performed well, he was nominated as singer of the year.
