150 câu trắc nghiệm Tìm lỗi sai nâng cao (P5)
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By the mid-nineteenth century, land was such expensive in large cities

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By the mid-nineteenth century, land was such expensive in large cities that architects began to conserve space by designing skyscrapers.

(A) By the mid-nineteenth century

(B) Such expensive

(C) Conserve

(D) By designing

Giải thích

Đáp án B => so expensive

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