Bộ 10 đề ôn thi học sinh giỏi Tiếng anh lớp 9 có lời giải chi tiết (Đề 10)

What has been the cause for changes in the sale of eggs? A. increasing price B. decreased production C. dietary changes in hens D. concerns about cholesterol

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What has been the cause for changes in the sale of eggs?

increasing price

decreased production

dietary changes in hens

concerns about cholesterol

Giải thích

Chọn D