【题目】It is difficult to find a taxi waiting at the train station at this time you can hire to reach your host family.
A. when B. where C. which D. as
在线课程【答案】C
【解析】
考查定语从句。句意：在这个时候，很难找到一辆在火车站等着你出租车，你可以租它去你的寄宿家庭。此处a taxi是先行词，指物，在后面的定语从句中做宾语，用which或that引导，故选C。