The changes in the city will cost quite a lot, ___________they will save us money in the long run.
A. or B. since C. for D. but
The changes in the city will cost quite a lot, ___________they will save us money in the long run.
A. or B. since C. for D. but
D
本题考查并列连词or、for、but和从属连词的意义和用法。并列连词or通常表示选择关系；for表示因果关系；but表示转折关系；从属连词since表示原因。通过比较前后两个分句意思可知，它们是转折关系。