Thanks to their hard work the new bridge has been finished .A. in front of scheduleB. ah

问题补充：

Thanks to their hard work, the new bridge has been finished .

A. in front of schedule

B. ahead of schedule

C. behind schedule

D. beside schedule

答案：

A. in front of schedule

(答案→)B. ahead of schedule

C. behind schedule

D. beside schedule

解析：考查词组：ahead of schedule提前，句意：多亏了他们的努力工作，新桥已经被提前完成了。选B。