题目内容：

One day, a little boy comes into a shop and says to the shop assistant, “I want to buy twelve exercise books of 6 cents(美分)each and nine pencils of 10 cents each. How much is that altogether(总共)? ”

The shop assistant writes these numbers down on a piece of paper and thinks for a minute. Then she says, “1 dollar 62 cents. ”“If I give you ten dollars, how much money will I get back? ”“You will get 8 dollars 38 cents for change. Here you are. These are the things you want. ”

“No, thank you. I don’t want to buy anything. ”The boy looks at the piece of paper and says politely, “This is my math homework. Thank you very much. Can I take it away? ”

1.The story happens______.

A. in a shop　　B. at a mall  C. in a supermarket D. at school

2.The little boy comes to the shop for______.

A. nine pencilsB. some books　C. nothingD. his homework

3.The little boy is______.

A. bad B. naughty but clever C. stupid(愚蠢的)D. hard-working

4.At last the shop assistant must be______.

A. excitedB. happy  C. angryD. surprised

5.The underlined word “change” in the second paragraph means______.

A. 零钱B. 交换C. 改变D. 金钱