travelling expenses rising a lot we had to change all our plans for the tourA. AsB. ByC

问题补充：

travelling expenses rising a lot, we had to change all our plans for the tour．

A. As

B. By

C. Since

D. With

答案：

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。