During the Second World War it was difficult _1_ by plane, because the seats were needed for important people.

 Mr. Brown worked for the government during the war . He was doing _2_ secret work , so nobody knew _3_ important he was _4_ a very few people.

 One day he had to _5_ to Edinburgh to give a report to a few top people there, but an important officer came to the airport _6_ the last moment, and Mr. Brown’s seat _7_ to him, so he _8_ able to fly to the city to give his report.

 The important officer didn’t find _9_ the man was the one whose lecture he was flown to the city to hear until he _10_ the city.