SCHOOL EDUCATION SYSTEMI. HÃY CHỌN MỘT CÂU TRẢ LỜI ĐÚNG NHẤT

DE THI TUYEN TIENG ANH 12 NHE

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Đáp án tham khảo

163. Gold _______ in California in the 19

^th

century

A. was discovered B. has been discovered C. were discovered D. they discover