Rewrite the following sentences into the passive voice beginning with the following words.
1.People often enjoy travelling abroad for holidays
2. A pilot will fly a plane from an airport for many thousands of miles.
3.Although traffic is rarely a problem for airplanes, it can take a lot of preparation to travel by plane
4.People may choose to sleep on the ferry while wait to arrive at their destination
5.Some people choose to go on a cruise for their holiday, which would involve stopping at many different city ports for a short amount of time
6.People often rely on their legs to take them to places nearby and they walk