【单选题】

I was wondering through the street when I caught sight of a strange store; there wasn’t anything but empty shelves at one end of the room in front of which a man was standing on a (21) platform(平台) and shouting loudly that the greatest sale of the year was (22) to begin. I decided to stay and see (23) would happen.A、salesman began to pile (24) of things on the shelves such as table-lamps, clocks, combs and a large quantity of small packets (25) in bright paper. When the man at the table was (26) that a large crowd of peo pie had gathered, he began handing out the packets, asking for the sum(金额) of three pence (27) , and declaring the (28) of the contents was fifty times as much.

I paid three pence for my packet and was (29) told I should not open it until after the sale.All these beautiful things the man announced, would be simply (30) . He was as good as his (31) , for he held up a razor(剃刀) and asked a young man if it was (32) six pence. The young man was (33) the matter and was at once handed the razor for the sum askeD、 (34) happened with a number of other small articles.
Then (35) asking small sum like six pence, the man began to (36) large amounts (数量)for "very rare, high-quality" objects. The people (37) , thinking that these too were being "given away", soon found themselves (38) a great deal for useless things. I decided I’d better go quickly before being (39) into buying something I didn’t want. I went into the street and opened my prize-packet, only to find that I had been (40) with a cheap bottle of scent(香水) !
A．price
B．value
C．cost
D．usefulness