一篇英语完型填空,The captain of a ship and a merchant （商人） were frie

一篇英语完型填空,
The captain of a ship and a merchant （商人） were friends．The merchant had a young son,who wanted to be a sailor （水手）,so the captain took him for voyages in his 36 ．One day when the captain had come from a  37  with a lot of money,the merchant told him that the price of iron（铁） had  38  and suggested that he should buy some with his money．“I’ll   39 it for you in my storehouse 40 you return from your next voyage,and perhaps you’ll get  41   money．”
But while the captain was away,the price of iron went up very  42  ,so the merchant sold it and kept the money．When the captain came back,his  43 friend told him that he was very sorry and the mice had  44  all the iron．
The captain knew that his friend was  45  lies,but he stayed  46_and said,“I knew that you had problems  47  mice in your storehouse．”
After a few days,the captain started  48 voyage,and when he returned home,he said to the merchant,“I’m very sorry,but  49_our voyage a bird came down and carried your son away．”      
The merchant was very  50  and said,“Birds cannot carry boys!” “And 51 can mice eat iron,” answered the captain．The merchant took the captain to a  52 ,who said,“The merchant must 53 the captain the money which he got when he  54 the iron,and then the captain must  55  the merchant’s son back to him．”
36．A．car   B．cart   C．ship   D．plane
37．A．voyage  B．travel         C．business  D．visit
38．A．fallen      B．changed   C．widened  D．risen
39．A．keep   B．hide   C．hold   D．put
40．A．when   B．since      C．after