题目
Error Correction (15 minutes)

Time spent in a bookstore can be enjoyable, if --71.

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 heart's content. If it is a good shop, no

assistant will approach to you with the inevitable --77.

greeting: "Can I help you, Sir?" You needn't buy

anything if you don't 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. (away) from

73. (even) although

74. bored -- boring

75. (far) too

76. impossible -- possible

77. /

78. (remain) in

79. since -- but

80. (as) if