Bộ 10 đề ôn thi học sinh giỏi Tiếng anh 9 năm 2023 có đáp án (Đề 5)

One of the causes of water shortages in South-east England is ______. A. water pollution B. increased demand C. water-supply system decline D. water evaporation

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One of the causes of water shortages in South-east England is ______.

water pollution

increased demand

water-supply system decline

water evaporation

Giải thích

Chọn B