听力文本：

Hi, I'm Casey Evers with your news update. If you were late to work this morning because you were sitting in heavy traffic, chances are you were on Highway 36. Construction for the new toll road began this morning along northbound Highway 36. The toll road is meant to help alleviate highway traffic for commuters heading into the city. The highway will be down to two lanes for the next few months, so if you're used to taking Highway 36, it might be best to look for another route or leave your house earlier than usual.
大家好，我是Casey Evers，为大家带来最新消息。如果您今天早上因为赶上了严重的交通拥堵而上班迟到，那你很可能走的是36号公路。工人们今天早上开始对城中这条收费公路继续向北修建。修建这条公路是为了缓解前往城中上班车辆的交通压力。接下来这条公路会被划分成两条车道，所以如果你之前是走这条路的可能需要另觅途径，否则你可能需要比平时早出门一些。
77.Who most likely is the speaker?
77.说话的可能是什么人？
78.What roadway is under construction?
78.工人们在修建哪条公路？
79.What is mentioned about the construction?
79.上面关于道路修建说了什么？