完形填空．

　　Mike Smith is a six-year-old boy．His father has a shop in the centre of a small town．He 　　1　　 some food in his shop．He’s friendly to the buyers and the food in his shop is 　　2　　．So people like to buy something there．And he’s very 　　3　　 all the time．

　　It was Mr．Smith’s forty-first birthday yesterday．His wife decided to 　　4　　 some fish for her husband．As he couldn’t leave his shop and she had to cook in the 　　5　　, she thought her son could help her．So she told Mike to go to 　　6　　 some fish．Before the boy went out, she said,“Your dad likes living fish, you know．Don’t 　　7　　 the dead fish home．”

　　“But how can I tell the living fish from(区分)the dead ones?”

　　“That’s easy, my son,”said the woman．“Put the fish into the water and watch carefully．The living fish can 　　8　　, but the dead ones can’t．”

　　“OK．Mummy,”the boy said and left．He went outside the town and saw a few farmers catching fish in a pool(池塘)．He put a fish 　　9　　 the pool．And the fish went down under the water．He was 　　10　　 and shouted,“Please sell the fish to me, sir!”

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