It was a very foggy morning in London. The fog was so thick that it was impossible to see more than a foot or so. Buses, cars and taxis were stopped along the roadside, unable to move because the drivers couldn't 1. People were trying to walk to their destinations, but most were losing their 2 in the fog.
Mr. Smith had a very important meeting at the House of Commons, but he was not familiar with the area and 3 could take him there in such heavy fog. So he was a little 4. He was trying to find his way in the fog. Soon, however, he realized that he was lost. 5he bumped into a stranger. Mr. Smith said sorry to the stranger and then asked him whether he 6 help him find his way. The stranger said it was a piece of cake and 7to take Mr. Smith to the meeting place. Mr. Smith thanked him and they started to walk. The fog was getting thicker and thicker every minute but the stranger had no difficulty in finding the way. They went along one street, turned down another, 8a square and at last, after about half an hour, they arrived at the meeting place.
Mr. Smith couldn't understand how the stranger found his way. "It is wonderful," he said. "But 9 do you find the way in the thick fog?"
"It is no trouble at all 10 me," said the stranger. "I am blind."
