Here is the complete sentence list with correct words filled in:
We had to set off at 5 a.m. to catch our train.
I always check in online to save time at the airport.
There was heavy traffic , so we arrived 40 minutes late.
I forgot my boarding pass and couldn't board the plane.
Don't miss your flight ! It's the last one today.
The plane will take off at 9:30 sharp.
He went to book a flight at the travel agency.
We picked up my cousin from the station.
I bought a return ticket to London and back.
We got stuck in traffic for two hours on the motorway!
We couldn't board the plane because we lost our boarding pass . (Answer: b)
You need to check in at least two hours before departure. (Answer: a)
The scheduled departure was delayed by an hour due to the weather. (Answer: b)
They decided to hire a car for their weekend trip. (Answer: b)
He missed his connecting flight and had to stay overnight. (Answer: c)
These activities are typical of the process of traveling, particularly by plane, and involve planning and organization to ensure a smooth journey. It's always beneficial to start early and stay informed about any potential issues that may arise, such as traffic or weather conditions.