第30题: [单项选择]Some people care much about their appearance and always ask if they look fine in ________ they are wearing. A. that B. what C. how D. which 参考答案:B 答案解析:题干的意思是:“有些人太过在意外表,总是问穿着身上的衣服,自己是否看起来不错”。分析句子结构,_____ they are wearing是介词in后的宾语从句。根据三句话原则:what引导名词性从句