90、level3-unit1-part2 dialogue-missing the flight

A: Hi, I'm sorry to be late.
B: What happened?
     You were supposed to be here an hour ago.
A: Yes, I know but I missed my flight.

问：How late is he? →He's an hour late.

填空：He was supposed to be there an hour ago.

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A: You missed your flight? How did that happen?
B: I got on the wrong bus this morning, so I was late to the airport. 
     By the time I arrived, the gate was closed.
A: What did you do then?
B: I had to rebook my flight and get on the waiting list.

问：Why was he late to the airport? →He got on the wrong bus.

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A: Oh, that's too bad. At least you got here.
B: Yes, it wasn't easy getting on the next flight.
      I had to run to the gate.
A: This kind of thing happens a lot lately. 
      Last week I missed flight too.

问：What kind of thing happens a lot? →A lot of people miss their flights.

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B:What happens?
A: There was atraffic accidentnear the airport.
B: You were driving?
A: No, I wasn't. I was in a taxi.
     But it took a long time to get to the airport. 
    The traffic was stopped for nearly 15 minutes.

问：Why did he take a long time to get to the airport? →the traffic was stopped because of an accident.

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A: By the time I got there it was too late to get on the flight.
     The next flight wasn't for another 3 hours, so it was a long wait.
      From now on, I'll try to get to the airport much earlier.
B: Me,too.

问：How long did she have to wait for the next flight?→ She had to wait three hours.