【题目】Success always hides behind the next comer in the road, so you will never know how close it lies you turn the comer.
A. as B. if
C. though D. unless
在线课程【答案】D
【解析】
考查连词辨析。句意:成功总是藏在路的另一个拐角处,所以你永远不会知道它离你有多近,除非你转过这个拐角。A. as因为;B. if如果; C. though尽管;D. unless除非,根据题意,故选D。