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

Early peoples didn’t need water supply engineering works because ______. A. their community life had already developed B. natural sources of fresh water nearby were always available C. t

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Early peoples didn’t need water supply engineering works because ______.

their community life had already developed

natural sources of fresh water nearby were always available

there was almost no dry season in prehistoric times

they had good ways to irrigate their farms

Giải thích

Chọn B