18、One morning Mr Green is driving around the country and looking for a small bookshop. When he sees an old man _ _ _ 21 _ _ _ the side of the road, he stops his car and says to the old man,"Excuse me. I want _ _ _ 22 _ _ _ to the Sun Bookshop. Do you know it?"
"Yes," the old man answer, "I will show you the way." He _ _ _ 23 _ _ _ Mr Green's car, and they drive about twelve miles. While they come to a small house, the old man says, "Stop here." Mr Green stops and _ _ _ 24 _ _ _ the house. "But this isn't the hotel,"he says to the old man. "Right," the old man answers, "this is my house. And now I'll show you the _ _ _ 25 _ _ _ to the bookshop. Turn around and go back nine miles. Then you'll see the bookshop."