advertisement uses words and pictures the advertisers think of to convince people to buy product or service, or to believe in an idea.
A. An; the; a; /
B. An; /; the; a
C. The; /; a; /
D. The; the; /; the
网友回答
(答案→)A. An; the; a; /
B. An; /; the; a
C. The; /; a; /
D. The; the; /; the
解析：考查冠词。句中an advertisement泛指广告；the words and pictures特指广告中所用的文字和图片；a product一件产品；service服务，为不可数名词，故选A。