第二节 完型填空
阅读下面短文，从短文后所给各题的四个选项(A、B、C和D)中选出能填入相应空白处的最佳选项。
Cheques(支票) have largely replaced money as a 【B1】 of exchange, for they are widely accepted every where. 【B2】 this is very convenient(方便的) for both buyers and sellers, it should not be forgotten that cheques are not real money: they are quite 【B3】 in themselves. A shop-keeper always runs a certain risk when he accepts a cheque and he is quite within his rights, if on occasion(偶尔), he 【B4】 to do so.
People do not always know this and are shocked if their good 【B5】 is called in question. An old and very wealthy friend of mine told me he had an extremely 【B6】 experience. He went to a famous jewellery shop which keeps a large stock(存货) of dear stones and asked to be shown some pearl(珠子) necklaces. After examining several ones, he decided to buy a particularly fine string of pearls and asked if he could pay by 【B7】 . The assistant said that this was quite in 【B8】 , but the moment my friend 【B9】 his name, he was invited into the manager's office.
The manager was very polite, but he explained that someone with exactly the same name had presented them with a 【B10】 cheque not long ago. My friend got very 【B11】 when he heard this and said he would buy a 【B12】 somewhere else. When he got up to go, the manager told him that the police would arrive at any moment and he had better stay 【B13】 he wanted to get into serious trouble. Sure enough, the police arrived soon afterwards. They 【B14】 to my friend for the inconvenience, but explained that a person who had used the same name as he answered for a number of recent robberies. Then the police asked my friend to 【B15】 out a note which had been used by the thief in a number of shops. The note 【B16】 : I have a gun in my pocket. Ask 【B17】 questions and give me all the money in the safe. 【B18】 , my friend's handwriting was quite 【B19】 the thief's. He was not only allowed to go without further 【B20】 , but to take the string of pearls with him.
【B1】

A. method
B. means
C. idea
D. way