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This question belongs to "Đề Thi Thử Tốt Nghiệp Tiếng Anh 2026 Sở GD Hà Tĩnh Lần 2" on Học Mỗi Ngày. Review the answer, solution, and related items in the same set to study more effectively.

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Choose the correct option for blank (7)

A

making urban environments more livable and comfortable

B

while some people question its long-term effectiveness

C

although it may require significant financial investment

D

but it is not always considered a practical solution to invest in

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