14．阅读下面短文，从方框内选择恰当的句子填入文中空白处，使短文内容完整、意思连贯．
Bill is a good student and a smart boy．He likes to study maths，and he can do all of the maths problems in his book easily．
One day on his way to school，Bill passed a fruit store．There was a sign in the window which said，"Apples-six for five cents．"（86）D
"（87）B"he asked the storekeeper．
"Six for five cents．""But I don't want six apples．"
"（88）E"
"It's not a question of how many apples I want．It is a maths problem，"said Bill．
"（89）A"asked the storekeeper．
"Well，if six apples are worth five cents，then five apples are worth four cents．Four apples are worth three cents，and three apples are worth two cents．（90）CI only want one apple，and if one apple is worth nothing，then it is not necessary for me to pay you．"
Bill picked out a good apple，began to eat it，and walked happily out of the store．The man looked at the young boy with such surprise that he could not say a word．
A．What do you mean by a maths problem？
B．How much are the apples？
C．Two apples are worth one cent and one apple is worth nothing．
D．An idea came to Bill and he went into the store．
E．How many apples do you want？
