问题
选择题
There is a new problem involved in the popularity of private cars _______ road conditions need _______.
A．that; to be improved
B．which; to be improved
C．where; improving
D．when; improving
答案
答案：C
主要测试同位语从句。由句子语境可知句意;有个新的问题卷入私家车行列：道路状况需要改进。结合同位语从句的定义可知：问题的具体内容既是：到了状况需要改进。因此属于该句型结构。例如：There was a new problem put forward at the meeting where we could get the loan。会议上提出一个新问题，我们到哪儿弄到贷款。