单选题 People began to conserve energy ______ largely to the hike in raw material prices last year.
A. according
B. attempt
C. due
D. need

【正确答案】 C
【答案解析】中级问题 所有选项都能与to搭配。但是从意义上来说,“due (largely) to sth. ”意为“主要因为某事”,最为合适。这里的largely也可以换成mainly。partly because of意为“部分因为某事”。
[高频词语] conserve energy 节省能量 a hike in……的上升 raw material 原材料