In ____late 19th century, Europe changed ______great deal and played an important role in ______international trade. A. the; a; the B. the; the;不填 C. the; a; an D. the; a; 不填
答案:D 解析: 在序数词前用定冠词the; a great deal为固定短语, 意思为 “大量地”;international trade表示泛指概念,不用冠词。