Directions:Complete the following passage by filling in each blank with one word

Directions：Complete the following passage by filling in each blank with one word that best fits the context．

The dream of escaping a traffic jam has come a tiny bit closer with the maiden flight(首航)of a "roadable aircraft"．Media were not present at the airstrip in Plattsburg, New York, 1．________ the test took place, but the company, Terrafugia, has released photographs and a video recording the event．"This breakthrough changes the world of personal mobility－it's 2．________ aviation enthusiasts have been striving for since 1918," said Carl Dietrich, CEO of Terrafugia．

3．________ front-wheel drive and fold-up wings, the aircraft is capable 4．________ being driven on public roads at highway speeds and will fit in 5．________ standard garage．What 6．________ can't do, legally, is take off and land from anywhere other than an approved general aviation airport．Other flying cars have been demonstrated before, 7．________ this is the first proven model with foldable wings, 8．________ allow it to seamlessly transfer from air to road．The vehicle is expected to go on sale as early as 2012 for about US＄ 290,000．

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