六遥考试暑期备考的改错练习(2)　　you are a book-lover or merely there to buy a book a 　　present.
You may even have entered the shop 　　just to find shelters away a sudden shower.
--72.
　　Whatever the reasons, you can soon become totally 　　unaware of your surroundings.
The desire to pick 　　up a book with an attractive dust jacket is 　　irresistible, even this method of selection ought --73.
　　not to be followed, as you might end up with a 　　rather bored book.
You soon become engrossed in --74.
　　some book or other, and usually it is only much 　　later that you realise you have spent far much --75.
　　time there and must dash off to keep some forgotten 　　appointment -- without buying a book, of course.
　　This opportunity to escape the realities of 　　everyday life is, I think, the main attraction of a 　　bookshop.
There are not many places where it is 　　impossible to do this.
A music shop is very much --76.
　　like a bookshop.
You can wander round such places 　　to your hearts content.
If it is a good shop, no 　　assistant will approach to you with the inevitable --77.
　　greeting: Can I help you, Sir?
You neednt buy 　　anything if you dont want.
In a bookshop an 　　assistant should remain the background until you --78.
　　have finished browsing.
Then, only then, are his 　　services necessary.
Of course, you may want to 　　find out where a particular section is, since when he --79.
　　has led you there, the assistant should retire 　　discreetly and look as he is not interested in --80.
　　selling a single book.
　　答案： 　　71.
if -- whether 　　72.
from 　　73.
although 　　74.
bored -- boring 　　75.
too 　　76.
impossible -- possible 　　77.
/ 　　78.
in 　　79.
since -- but 　　80.
if