A、A Swedish company. B、A Russian company. C、An American company. D、A Chinese company. A该段听力相对较难，但是问题不是太难。a Swedish company whose

A $150 million project to replace all of the vertical suspension cables on the 100-year-old Manhattan Bridge will cause occasional weekend disruptions in subway service and require closings of the bikeway and some traffic lanes  for parts of the next four years, city transportation officials said this week.
    (29) The city’s Department of Transportation is preparing to award a contract for the repair work to Skanska, a Swedish company whose American headquarters are in New York. The department notified Skanska last week that its bid, which was just shy of $150 million, was lower than the other four received.
    (30) The contract is one of 14 that make up the final phase of a three-decade effort to rebuild the bridge, which connects Lower Manhattan to Downtown Brooklyn. All told, about $ 830 million has been spent repairing the bridge, which suffered from neglect during the city’s financial crisis in the 1970s, said Brian Gill, the chief engineer of Manhattan Bridge reconstruction for the Transportation Department.
    (31) Skanska has said that it will complete the work, which includes replacing the necklaces of lights that illuminate the bridge’s outer cables, in three and a half, years. Mr. Gill said the city could penalize the company if it did not complete the work on schedule.
    During that period, subway service across the bridge on the B, D, N and Q lines will be suspended on as many as eight weekends, Mr. Gill said. The schedule for those suspensions has not yet been determined, said Seth Solomonow, the department’s spokesman.
29. To which company will the contract be awarded?
30.How many contracts make up the final phase of a three-decade effort to rebuild the bridge?
31.How many years will Skanska complete the work?