It was not until the end of the nineteenth c...
Câu hỏi: It was not until the end of the nineteenth century ______.
A. did plant breeding become a scientific discipline
B. that plant breeding became a scientific discipline
C. that a scientific discipline was plant breeding
D. did a scientific discipline become plant breeding
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Đề luyện thi THPT Quốc Gia - Năm 2020 Môn thi: TIẾNG ANH !!