EXERCISE 4 
      Check have largely __1_ money as a means of exchange for they are widely accepted everywhere.Though this is very _2__ for both buyer and seller,it should not be forgotten that checks are not real money;they are quite _3__ in themselves. A shopkeeper always runs a certain _4__ when he accepts a check and he is quite _5__ his rights if,on accasion,he refuses to do so.
      People do not always know this and are __6_ if their good faith is called _7__. An old and very wealthy friend of mine told me he had an extremely _8__ experience.He went to a famous jewelry shop which keeps a large __9_ of precious stone and asked to _10__ some pearl necklaces.After examing several trays,he decided to buy a particularly fine string of pearls and asked _11__he could pay by check.The assistant said that this was quite _12__,but the moment my friend signed his name,he was invited into the manager's office.
      The manager was very polite,but he explained that someone __13_ exactly the same name had presented them with a worthless check not long ago. My friend fot very angry when he heard this and said he would buy a necklace 14___.When he got up to go,the manager told him that the police would arrive at any moment and he had better stay_15__ he wanted to get into serious troubles._16__ the police arrived soon afterwards,They apologized to my friend for the __17_ but explained that a person who had used the same name as his was responsible for a number of recent robberies.Then the police asked my friend to copy out a note _18__ had been used by the theft in a number of shops.The note _19__ "I have a gun in my pocket.Ask no questions and give me all the money in the safe."Fortunately,my friend"s handwriting was quite _20__ the thief's.Then he was allowed to go without delay.
1)    A  made        B replaced      C instead         D pretended
2)    A  favourite     B popular       C profitable       D convenient
3)    A  dangerous    B meaningless   C unimportant     D valueless
4)    A  chance       B risk          C opportunity     D danger
5)    A  within       B out of         C without        D beyond
6)    A  unhappy     B ashamed       Cshocked        D puzzled
7)    A  in doubt     B in earnest      C in difficulty     D in question
8)    A  exciting     B happy         C unpleasant      D wonderful
9)    A  amount      B accident       C stock          D number
10)   A  give        B be given       C show          D be shown
11)   A  if          B when          C what          D that
12)   A  in need     B in common      C in use         D in order
13)   A  used       B with           C named         D by
14)   A  anywhere   B somewhere     C somewhere else  D everywhere
15)   A  unless      B otherwise      C if              D whether
16)   A  really      B sure enough     C certainly       D however
17)   A  manner     B behavior       C inconvenience   D treatment
18)   A  told        B read           C which       D what
19)   A  told        B informed        C read        D wrote
20)   A  unlike      B different         C dissimilar   D dislike


答案：
1--5 BDDBA
6--10 AACCD
11--15 ABBCA 
16--20 DCCCA