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。