travelling expenses rising a lot, we had to change all our plans for the tour．
A. As
B. By
C. Since
D. With
网友回答
A. As
B. By
C. Since
(答案→)D. With
解析：此题答案错误，若选A，As为连词后应该是句子，此题考查的是with 的复合结构做状语，with travelling expenses rising a lot，随着旅游费用增长的很快，在句中作原因状语，所以选D。