More often than not, those in their early twenties are the more 17 consumers.
答案：(A) informed
informed 當形容詞是「消息靈通的、掌握充分資訊的」，用來形容人；informed consumers 即「懂得做功課的消費者」。informative（提供豐富資訊的）用來形容書籍、演講等事物，informal（非正式的）、informational（資訊性的）語意都不合。
答對率 15%。而且程度好與程度弱的人答對率幾乎一樣，代表大家都在猜。
inform 的家族擠成一團，你記得 information、informative，卻很少把 informed 當形容詞記住。它的中文是「消息靈通的」——什麼行情、什麼潮流都知道。兩個字方向相反：informed ＝ 知道很多，形容「人」；informative ＝ 給出很多資訊，形容「東西」（a book／a talk／a website）。消費者是人，只能用 informed。
There isn't a brand or a trend that these young people are not aware of.（沒有哪個品牌或潮流是這些年輕人不知道的）——用雙重否定表達「什麼都知道」，正是 informed 的同義改寫。形容詞題不確定時，往下一句找作者有沒有換個說法再講一次。
informed（消息靈通的）／informative（資訊豐富的）／informal（非正式的）／informational（資訊性的）。
an informed consumer（懂得做功課的消費者）、an informed decision（明智的決定）、well-informed（消息靈通的）、keep sb informed（隨時告知某人）、an informative talk（資訊豐富的演講）。
Anita was shopping with her mother and enjoying it. Interestingly, both of them 16 buying the same pair of jeans. According to a recent marketing study, young adults influence 88% of household clothing purchases. More often than not, those in their early twenties are the more 17 consumers. There isn't a brand or a trend that these young people are not aware of. That is why mothers who want to keep abreast of trends usually 18 the experts－their daughters. This tells the retailers of the world that if you want to get into a mother's 19 , you've got to win her daughter over first.
With a DJ playing various kinds of music rather than just rap, and a mix of clothing labels designed more for taste and fashion than for a precise age, department stores have managed to appeal to successful middle-aged women 20 losing their younger customers. They have created a shopping environment where the needs of both mother and daughter are satisfied.