试题题干
Translate the following sentence into Chinese.
Customers are becoming more demanding. They have more choices as to what they buy and from whom.
参考答案
试题解析
考点：demanding 要求高的；choice选择； as to对于，关于···。
句子结构：第一句为一个简单句。第二句主干为They have more choices，as to what they buy and from whom为状语。