The high-speed train will _____ you about 2 hours from Rizhao to Jinan.
save
pay
use
spend
save 救助,节省;pay 付钱;use 使用;spend 花费。根据本题语境可知,从日照到济南,高铁能为你“节省”大约两个小时,故答案为选项A。