Time spent in a bookshop can be enjoyable. If you go to a ___36___shop, no assistant will come near to you and say “Can I help you? ” You ____37____buy anything you don’t want. You may try to ___38____where the book you want is. But if you can’t , the assistant will lead (引导 ) you there and then he will go away. It seems that he is___39___selling any books at all.
Once a medical student found a very useful book in the shop, ___40____it was too expensive for him to buy. He couldn’t get it from the library, ____41___. So every afternoon, he went there to read___42___at a time. One day, however, he couldn’t find the book from its usual place and ___43____when he saw an assistant signing to him. To his surprise, the assistant pointed to the book in the corner, “I put ____44____ there so as not to be sold out,” said the assistant. Then he  ___45___ the student to go on with his reading.

A．good B． bad C．cheap D．expensive

A．shouldn’t B．don’t need to C．mustn’t D．can’t

A．look for B．search C．find out D．find

A．surprised at B．not surprised at C．interested in D．not interested in

A．and B．but C．so D．or

A．either B．also C．too D．as well

A．little B．a little C．few D．a few

A．left B．leave C．to leave D．was leaving

A．you B．them C．it D．yours

A．left B．let C．helped D．taught