問題詳情:
Corn originated in the New World and thus was not known in Europe until Columbus found it _______ in <?xml:namespace prefix = st1 />
A. being cultivated B. been cultivated C. having cultivated D. cultivating
【回答】
A知識點:現在進行時及其被動式
題型:選擇題
問題詳情:
Corn originated in the New World and thus was not known in Europe until Columbus found it _______ in <?xml:namespace prefix = st1 />
A. being cultivated B. been cultivated C. having cultivated D. cultivating
【回答】
A知識點:現在進行時及其被動式
題型:選擇題