一个英语阅读题.With a good shopping position and the right amount（数

一个英语阅读题.
With a good shopping position and the right amount（数量）of money ,any educated person ought to be able to make a living out of a bookshop .It is not a difficult trade to learn and the large chain-stores can never force the small bookseller out of existence as they have done to the corner shop .But the hours of work are very long-I was only doing a part-time job ,but my boss put in a seventy-hour week ,besides regular journeys out of shopping hours to buy books .
The real reason why I should not like to be back in the book trade for life ,however ,is that while I was in it I lost my love of books .A bookseller cannot always tell the truth about his books ,and that gives him a dislike for them .There was a time when I really did love books—loved the sight and smell and feel of them—if they were fifty or more years old ,that is .Nothing pleased me quite so much as to buy a bargain lot of them on sale for several pounds .There is a peculiar flavor（独特的味道）about the unexpected books you pick up in that kind of collection:little-known eighteenth-century poets ,or out-of-date geography books .For occasional（偶尔的）reading—in your bath ,for example ,or late at night when you are too tired to go to bed—there is nothing as good as a very old picture story-book .
But as soon as I went to work in the bookshop I stopped buying books .Seen in a mass .five or ten thousand at a time ,books were dull and even a little tiresome .Nowadays I do buy one occasionally ,but only if it is a book that I want to read and can’t borrow ,and I never buy rubbish .
1.According to the passage ,is one of the necessary conditions to run a bookshop .
A.an educated shop-ownerB.a good position at a street corner
C.a regular journey out of the shopD.the force of large chain-stores