【题目】______ unemployment and crime are high, it can be assumed that the latter is due to the former.
A. Where B. Before C. Until D. Unless
在线课程【答案】A
【解析】考查连词。A. Where在…地方；B. Before在…前；C. Until直到；D. Unless除非。句意：在失业率和犯罪率居高不下的情况下，人们可以假定后者是由前者造成的。表示在…情况，故选A.