One legacy of Madison Avenue's recent campaign to appeal to people fifty years old and over is to realize that when people age, their concerns change as well.
平行结构
when领导的状语从句繁冗
动词不定式做宾语时注意施动者是谁,明显这一句legacy不可能去realize sth.这句不要被好像存在的to do is to do的平行迷惑了,这一句要看主谓一致,也就是主谓平行。 (1)看到legacy,意识到to realize 不行,杀C,D (2)concerns change表明是复数,杀A; (3)realize有名字形式就不用ing形式来表示名词,杀E
to realize 的动作发出者不是legacy, 只能是用名词来表达
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