Question

【题目】We are now faced with a new problem involved in the popularity of private cars __________ road conditions need __________.

A. which; to be improved B. that; to be improved

C. where; improved D. when; improved

Answer 1

【答案】B

【解析】句意：私家车辆使我们面临一个新的问题，道路状况需要改善。that引导同位语从句；need可以跟动名词或不定式的被动式表被动，即need doing/need to be done。综上，选B。