问题
选择题
In ____late 19th century, computers changed _____great deal and were widely used______international trade.
A．the; a; the
B．the; the;不填
C．the; a; an
D．the; a; 不填
答案
D
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。