短文填词 There is a story which tells us about a good shop assistant. A medicalstudent had to read a textbook________was too________(昂贵) for him to buy.He couldn't get one from the library and the o ________copy he could read was in a bookshop.So every afternoon, he went there to read a little________a time.One day, however, he couldn't find the book from its________(通常) place and was about to leave when he n ________an assistant signing to him.To his s ________, the assistant pointed to the book, which was in a________(角落). 'I put it there so as not to be sold out, ' said the assistant. Then he left the student to c ________his reading.Undoubtedly, time spent in________a bookshop can be enjoyable.