(单选题)

In the US, 88 percent of smokers had started before they were 18, despite the fact that it is ______ to sell cigarettes to anyone under that age.

A.incorrect

B.irregular

C.irrational

D.illegal

参考答案：D

参考解析：

考查形容词副词辨析。句意：在美国，88%的吸烟者在18岁之前就开始吸烟了，尽管出售给18岁以下的人是不合法的。incorrect意为“不正确的”；irregular意为“不规则的”；irrational意为“无理性的”；illegal意为“不合法的”，故选D。

知识点：词义辨析英语专业基础知识词汇教师招聘-小学英语