When children approach their teens, they become more ______ of their appearance.
A、conscious
B、suspicious
C、ambitious
D、conscientious
【正确答案】：A
【题目解析】：译文：当孩子们接近青少年时，他们会越来越注重自己的外表。be conscious of意为“在意，注意"：be suspicious of意为“感到可疑的”：be ambitious for意为"对有野心的”。A符合题意。答案为A。
