2019年mpacc考试英语真题——冠词18

{01}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

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。
本题选D。
{02} As ___rule, apples are sold by_____weight and eggs by _____dozen.

A.a; 不填；the

B.a; the; the

C.a; a; the

D.the; 不填；不填

解析：as a rule(通常地)是固定词组；在度量名词前，表示付工资、卖、租等方式时，用the, 如paid by the hour (day, moth, piece…), sold by the yard (dozen, ton…)，比较by weight (按重量)。
本题选A。