number of people who own luxury cars is on increase every year.A. A; theB. A; anC. The; th

问题补充：

number of people who own luxury cars is on increase every year.

A. A; the

B. A; an

C. The; the

D. The; an

答案：

A. A; the

B. A; an

(答案→)C. The; the

D. The; an

解析：考查冠词。the number of……的数目；on the increase在增长。句意：每年，拥有豪华小汽车人的数目在增长。