单选题
She had expected them to be indifferent to ______ grown-up topics ______ taxes and social security.
【正确答案】
A
【答案解析】[名师精解] such...as...指“诸如……一类的”，其他的表达法都是英语中没有的。
[解题秘籍] such as和such...as...都用来罗列或举例，如：I like fruits such as apples, bananas and pineapples．或I like such fruits as apples and bananas．