【题目】The young man was glad that his experience as a cook in the army finally _______.
A. paid off B. paid for
C. paid up D. paid back
在线课程【答案】A
【解析】考查动词短语的辨析。句意：这位年轻人很开心，他在部队作为厨师的经历最终使他取得成功。pay off成功，带来好结果，得到回报，还清；pay back偿还，还钱；pay up=(全部或按时)付清；缴清(股款等)；pay for为……支付。A项符合语境。